Siose, Taniela Kepa, Mohammed Abdul Kader, and Anabella B. Tulin. “Determination of Limiting Nutrient to Sweetpotato (Ipomoea Batatas (L.) Growth on Samoa Oxisol Using a Nutrient Omission Technique”. Annals of Tropical Research 39, no. 1 (June 30, 2017): 105–119. Accessed July 11, 2025. https://atr.vsu.edu.ph/article/view/161.