APA (7th ed.) Citation

Hassan Hamzah. (1996). Apa & mengapa: Jilid 1-7. Piramid Perdana.

Chicago Style (17th ed.) Citation

Hassan Hamzah. Apa & Mengapa: Jilid 1-7. Shah Alam: Piramid Perdana, 1996.

MLA (8th ed.) Citation

Hassan Hamzah. Apa & Mengapa: Jilid 1-7. Piramid Perdana, 1996.

Warning: These citations may not always be 100% accurate.