Rola, A. (1999). Philippine crop protection policy: Implications for food safety and farm profitability in the vegetable sector. Institute of Strategic Planning & Policy Studies, College of Public Affairs, University of the Philippines Los Banos.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRola, A.C. Philippine Crop Protection Policy: Implications for Food Safety and Farm Profitability in the Vegetable Sector. College, Laguna: Institute of Strategic Planning & Policy Studies, College of Public Affairs, University of the Philippines Los Banos, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRola, A.C. Philippine Crop Protection Policy: Implications for Food Safety and Farm Profitability in the Vegetable Sector. Institute of Strategic Planning & Policy Studies, College of Public Affairs, University of the Philippines Los Banos, 1999.