Zakariah Hamzah. (1984). An analysis of the relationship between output and costs of inputs in Malaysian tin mining operations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zakariah Hamzah. An Analysis of the Relationship Between Output and Costs of Inputs in Malaysian Tin Mining Operations. 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zakariah Hamzah. An Analysis of the Relationship Between Output and Costs of Inputs in Malaysian Tin Mining Operations. 1984.
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