(2004). Mengenal alam cakerawala. Utusan Publications & Distibutors.
Chicago Style (17th ed.) CitationMengenal Alam Cakerawala. Kuala Lumpur: Utusan Publications & Distibutors, 2004.
MLA (9th ed.) CitationMengenal Alam Cakerawala. Utusan Publications & Distibutors, 2004.
Warning: These citations may not always be 100% accurate.