APA (7th ed.) Citation

DUDMAN & GRUGO. (1994). Gempa bumi. Penerbit Pan Earth.

Chicago Style (17th ed.) Citation

DUDMAN and GRUGO. Gempa Bumi. Petaling Jaya: Penerbit Pan Earth, 1994.

MLA (8th ed.) Citation

DUDMAN and GRUGO. Gempa Bumi. Penerbit Pan Earth, 1994.

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