Gaya APA

HASAN, J. et al (2012). Factors affecting desire to buy environmental friendly products . Surabaya: Fak. Bisnis & Ekonomi, Univ Surabaya.

Gaya MLA

HASAN, Judianto. et al. "Factors affecting desire to buy environmental friendly products". Surabaya: Fak. Bisnis & Ekonomi, Univ Surabaya, 2012. Artikel.