Mohamad Arfan, J. (2013). Soil and water conservation practices among the independent's oil palm smallholders at the Saratok's cooperative. Universiti Malaysia Sarawak, (UNIMAS).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mohamad Arfan, Johari. Soil and Water Conservation Practices Among the Independent's Oil Palm Smallholders at the Saratok's Cooperative. Universiti Malaysia Sarawak, (UNIMAS), 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mohamad Arfan, Johari. Soil and Water Conservation Practices Among the Independent's Oil Palm Smallholders at the Saratok's Cooperative. Universiti Malaysia Sarawak, (UNIMAS), 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.