Lee, V. (1975). A survey of perceived practices and problems in agricultural science education in Malaysian schools. s.n..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lee, Voon-mun. A Survey of Perceived Practices and Problems in Agricultural Science Education in Malaysian Schools. [Kuala Lumpur]: s.n., 1975.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lee, Voon-mun. A Survey of Perceived Practices and Problems in Agricultural Science Education in Malaysian Schools. s.n., 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.