Gaya APA

Saragih, A. (2002). Functional Approach to teaching Academic Writings (VOl. 2, No. 2/ Oktober 2002). Medan: Fakultas Sastra Universitas Islam Sumatera Utara.

Gaya MLA

Saragih, Amrin. "Functional Approach to teaching Academic Writings". VOl. 2, No. 2/ Oktober 2002 Medan: Fakultas Sastra Universitas Islam Sumatera Utara, 2002. Art Original.