Gaya APA

(NIMA), N, I, A, M, A. (1998). PUB. 161 Sailing Directions (Enroute) : South China Sea and Gulf of Thailand (Ed. 7). USA: Penerbit National Imagery and Mapping Agency.

Gaya MLA

(NIMA), National, Imagery, And, Mapping, Agency. "PUB. 161 Sailing Directions (Enroute) : South China Sea and Gulf of Thailand". Ed. 7 USA: Penerbit National Imagery and Mapping Agency, 1998. Text.