APA Style

Sahanaya, W. (1991). Secretarial contacts: communication skills for secretaries and personal assistants: study notes . Jakarta: Universitas Terbuka.

MLA Style

Sahanaya, Wendy. "Secretarial contacts: communication skills for secretaries and personal assistants: study notes". Jakarta: Universitas Terbuka, 1991. PMKPK (Pengelolaan Mata Kuliah.