Nooreha Husain. (1999). Assessing sustainability of a production system: A case study of Malaysian palm oil production. Fakulti Sains Matematik, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nooreha Husain. Assessing Sustainability of a Production System: A Case Study of Malaysian Palm Oil Production. Bangi: Fakulti Sains Matematik, Universiti Kebangsaan Malaysia, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nooreha Husain. Assessing Sustainability of a Production System: A Case Study of Malaysian Palm Oil Production. Fakulti Sains Matematik, Universiti Kebangsaan Malaysia, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.