Gaya APA
Hardiyatmo, H, C. (2009).
Pemeliharaan Jalan Raya Perkerasan Drainase Longsoran (1st. Ed).
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Pemeliharaan Jalan Raya Perkerasan Drainase Longsoran".
1st. Ed
Yogyakarta:
Gadjah Mada University Press,
2009.
Text.