Because mod creators frequently change the tracklist for their personal versions of "Armageddon," there is no single official list. If you downloaded a specific GTA San Andreas Armageddon folder from YouTube or a blog, the songs are usually MP3 files inside: C:\Program Files\Rockstar Games\GTA San Andreas\User Files\ or the mod’s audio folder.
However, there is no official "Armageddon" expansion for GTA: San Andreas by Rockstar Games. Instead, "Armageddon" is a well-known (created by modders, popular in Southeast Asia, especially Indonesia) that replaces the original radio stations with a custom playlist of regional and international hits, often accompanied by "playback" videos on YouTube. Kumpulan Lagu Gta San Andreas Armageddon Playback Music List
It seems you are looking for the related to a specific mod or fan-made compilation called "GTA San Andreas Armageddon" that features playback (likely meaning lip-sync or karaoke-style videos) songs, presumably popular in the Indonesian modding community. Because mod creators frequently change the tracklist for