Gaya APA

MUNTOHAR, A, S. (2010). Behavior of expansive clay of Ngawi region (East Java) under water content variation . Surabaya: Petra Christian University.

Gaya MLA

MUNTOHAR, A., S.. "Behavior of expansive clay of Ngawi region (East Java) under water content variation". Surabaya: Petra Christian University, 2010. Artikel.