APA Style

INDONESIA., D, P, U. (1988). T. Yokota's posthumous text on sabo works vol. II Feb. 1988 . Jakarta: Volcanic Sabo Technical Centre.

MLA Style

INDONESIA., DEPARTEMEN, PEKERJAAN, UMUM. "T. Yokota's posthumous text on sabo works vol. II Feb. 1988". Jakarta: Volcanic Sabo Technical Centre, 1988. Text.