Bala Subramaniam. (2002). Ekonomi Asas tkt 4-5 KBSM. Sasbadi.
Chicago Style (17th ed.) CitationBala Subramaniam. Ekonomi Asas Tkt 4-5 KBSM. Petaling Jaya: Sasbadi, 2002.
MLA (8th ed.) CitationBala Subramaniam. Ekonomi Asas Tkt 4-5 KBSM. Sasbadi, 2002.
Warning: These citations may not always be 100% accurate.