Gaya APA

Kurniawan, P., Hadimuljono, M, B. (2021). Applied geotechnics for engineers 2 . Yogyakarta: Andi.

Gaya MLA

Kurniawan, Paulus., Hadimuljono, M., Basuki. "Applied geotechnics for engineers 2". Yogyakarta: Andi, 2021. Text.