APA (7th ed.) Citation

Walker & Siti Rosnah Hj. Ahmad. (1994). Gempa bumi. Arenabuku.

Chicago Style (17th ed.) Citation

Walker and Siti Rosnah Hj. Ahmad. Gempa Bumi. Kuala Lumpur: Arenabuku, 1994.

MLA (8th ed.) Citation

Walker and Siti Rosnah Hj. Ahmad. Gempa Bumi. Arenabuku, 1994.

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