“Development of Site-Specific Nutrient Management (SSNM) Recommendations for Irrigated Rice in Region VI (Capiz, Aklan, and Antique)”. WVSU Research Journal 1, no. 1 (June 30, 2012): 16–31. Accessed September 24, 2007. https://journal.wvsu.edu.ph/index.php/journals/article/view/68.