Gaya APA

Lieberman, H. (2008). INTRODUCTIONS RESEARCH EIGHTH EDITION BUKU II (2). Yogyakarta: Andi Offset.

Gaya MLA

Lieberman, Hillier. "INTRODUCTIONS RESEARCH EIGHTH EDITION BUKU II". 2 Yogyakarta: Andi Offset, 2008. Buku Inti.