Gaya APA

The Eruptive Activities of Mt. Merapi (W-Sumatra) During 1975. (). Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi.

Gaya MLA

The Eruptive Activities of Mt. Merapi (W-Sumatra) During 1975. . Bandung, Jawa Barat, Indonesia: Pusat Vulkanologi dan Mitigasi Bencana Geologi, . .