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Gaya APA

Soekoto, I, I. (1984). Mempersiapkan Lapisan Dasar Konstruksi . Indonesia: Departemen Pekerjaan Umum.

Gaya MLA

Soekoto, Ir., Imam. "Mempersiapkan Lapisan Dasar Konstruksi". Indonesia: Departemen Pekerjaan Umum, 1984. Text.