Rola, A. C. (2000). An economic framework for assessing the impact of farmer field schools: A case study in IIoilo, Philippines. Institute of Strategic Planning and Policy Studies, College of Public Affairs, University of the Philippines Los Baños.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rola, Agnes C. An Economic Framework for Assessing the Impact of Farmer Field Schools: A Case Study in IIoilo, Philippines. College, Laguna: Institute of Strategic Planning and Policy Studies, College of Public Affairs, University of the Philippines Los Baños, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Rola, Agnes C. An Economic Framework for Assessing the Impact of Farmer Field Schools: A Case Study in IIoilo, Philippines. Institute of Strategic Planning and Policy Studies, College of Public Affairs, University of the Philippines Los Baños, 2000.