Hassan, Z., & Ali Yasin, S. M. (2012). Inovasi bangku gypsum / Zulkarnian Hassan and Siti Maryam Ali Yasin.
Cita Chicago (17th ed.)Hassan, Zulkarnian, i Siti Maryam Ali Yasin. Inovasi Bangku Gypsum / Zulkarnian Hassan and Siti Maryam Ali Yasin. 2012.
Cita MLA (9th ed.)Hassan, Zulkarnian, i Siti Maryam Ali Yasin. Inovasi Bangku Gypsum / Zulkarnian Hassan and Siti Maryam Ali Yasin. 2012.
Atenció: Aquestes cites poden no estar 100% correctes.