How to pronounce vowels in words

As I promised in my previous post, I will explain to you the sound of vowels, especially 'e'. Vowel is huruf vokal in Indonesia. There are only two pronunciations (mainly) for 'e' even though there is only one way to write it, which is just 'e'.

2 ways to pronounce 'e':
(1). 'e' sound which similar to e in taken. Also known as schwa. For example: mengapa (why), kenapa (synonym of mengapa), kelas (class), beban (weight), and so on.
(2). 'e' sound which similar to e in best. For example: enak (delicious), bebek (duck), lelang (auction), apotek (pharmacy store), and so on.

Unofficially, there is another type of 'e' sound, the one that doesn't pronounced at all. For example: selamat (in terms of greeting or congratulating, most Indonesian read it as if there is no 'e') sounds like 'slamat' , terima sounds like 'trima' (you can see phrase examples of these words in Greetings and special greetings), etc. But if it's to be spoken clearly then the pronunciation should sound like number (1).

Unlike in English, other vowels are to be pronounced consistently the same as I mentioned it in my previous post. 'A' is always pronounced ah, just like 'u' in buddy, bunny, lust, unknown, etc. You know how to pronounced 'Bali', right? Yeah, it's just like that. I, O and U are also always pronounced as the way you read the Indonesian alphabet (as I taught in my previous post, Indonesian Alphabet).

Examples:
tebak (guess) <=> father (the 'e' pronounced as 'e' in number  (1))
bohong (lie, not telling the truth) <=> in soap
lihat (see) <=> see
bubuk (powder) <=> bluetooth

Just a fun fact: In Sundanese (language that ethnic Sunda in West Java province are using) there is a diphthong, eu, which sounds like the swinged version of schwa. Not all Indonesian can make this sound.