Aishah Ahmad. (1999). Sains tingkatan 4 & 5. Preston.
Chicago Style (17th ed.) CitationAishah Ahmad. Sains Tingkatan 4 & 5. Petaling Jaya: Preston, 1999.
MLA (8th ed.) CitationAishah Ahmad. Sains Tingkatan 4 & 5. Preston, 1999.
Warning: These citations may not always be 100% accurate.