APA (7th ed.) Citation

Hasni Tamrin Halimi & Khan. (1984). Tremors at Lake Toba. Hasni Tamrin bin Halimi.

Chicago Style (17th ed.) Citation

Hasni Tamrin Halimi and Khan. Tremors at Lake Toba. Kuala Lumpur: Hasni Tamrin bin Halimi, 1984.

MLA (9th ed.) Citation

Hasni Tamrin Halimi and Khan. Tremors at Lake Toba. Hasni Tamrin bin Halimi, 1984.

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