Nampaknya penanda buku dan baucar buku diperlukan.

Nampaknya means it seems, apparently, or looks like.

In this sentence, it introduces the speaker’s impression or conclusion:

• Nampaknya ... diperlukan = It seems ... are needed

It does not mean someone literally sees something with their eyes here. It is more like making an observation or inference.

The base word is nampak, which often means to be visible, to appear, or to seem depending on context.

The ending -nya in nampaknya does not literally mean his/her/its here. In this kind of expression, -nya helps turn it into a more fixed phrase meaning:

• it seems
• apparently
• as it appears

So nampaknya is best learned as a common expression rather than translated word-for-word.

Penanda buku means bookmark.

It is made up of:

• penanda = marker / something used to mark
• buku = book

So literally, it is something like book marker.

This is a very common Malay pattern: a noun is followed by another noun that describes what kind of thing it is.

Baucar buku means book voucher.

• baucar = voucher
• buku = book

Yes, baucar is a loanword, ultimately from English voucher. Malay has many borrowed words, especially for modern or administrative things.

So baucar buku is simply a voucher related to books, such as one that can be used to buy books.

In Malay, the main noun usually comes first, and the describing noun comes after it.

So:

• penanda buku = marker for books = bookmark
• baucar buku = voucher for books = book voucher

This is different from English, where the describing noun often comes first:

• bookmark
• book voucher

A good rule to remember is that Malay often uses a noun + modifier order.

Malay often does not mark plural as clearly as English does.

So:

• penanda buku can mean bookmark or bookmarks
• baucar buku can mean book voucher or book vouchers

Here, the word dan connects two items, and the overall meaning usually makes it clear that the sentence is talking about those items in general, so English naturally translates them as plural.

Malay can show plural with reduplication, such as buku-buku, but it is often unnecessary when the meaning is already clear from context.

Diperlukan means is needed, are needed, or is required / are required, depending on context.

It comes from perlu, which means need or necessary.

The form diperlukan is a passive-style form often used in formal Malay. In this sentence, it means that the things mentioned are needed.

So:

• penanda buku dan baucar buku diperlukan = bookmarks and book vouchers are needed

Malay often uses passive forms in situations where English would say is needed or are required.

Here, the important thing is not who needs them, but simply that they are needed. So the passive form is very natural.

Compare the idea:

• active-style idea: Someone needs bookmarks and book vouchers
• passive-style Malay expression: Bookmarks and book vouchers are needed

This makes the sentence sound more formal and impersonal.

Yes. The subject is:

• penanda buku dan baucar buku

That means bookmarks and book vouchers.

The sentence structure is roughly:

• Nampaknya = It seems
• penanda buku dan baucar buku = bookmarks and book vouchers
• diperlukan = are needed

So the full structure is:

• It seems [bookmarks and book vouchers] [are needed].

Malay does not always need a separate word corresponding to English is / are.

In this sentence, diperlukan already carries the main verbal meaning, so there is no need for a separate are.

This is very normal in Malay. English often requires a form of to be, but Malay frequently does not.

Yes, a small change is possible.

For example:

• Penanda buku dan baucar buku nampaknya diperlukan.

This also means roughly the same thing: Bookmarks and book vouchers seem to be needed.

The original version,

• Nampaknya penanda buku dan baucar buku diperlukan

puts nampaknya first, which makes the sentence begin with the speaker’s impression: It seems that...

It sounds fairly neutral to formal, especially because of diperlukan.

You might see this kind of phrasing in:

• announcements
• written instructions
• school or office communication
• official notices

In more casual speech, Malay speakers might use other patterns, but this sentence is perfectly natural and correct, especially in written or semi-formal contexts.