Gaya APA

Dairi, , G. (1990). Micro Asbuton as Surface Layer on Jalan Bandung-Rancabali . : HPJI.

Gaya MLA

Dairi, , Gompul. "Micro Asbuton as Surface Layer on Jalan Bandung-Rancabali". : HPJI, 1990. Computer Software.