Nabayi Abba, Christopher Teh Boon Sung, Ahmad Husni Mohd Hanif, and Zulkefly Sulaiman. 2020. “Use of Root Trainers and Wick Irrigation for Better Production of Rubber Plant Seedlings Production in Nurseries”. Soil & Environment 39 (2): 126-34. https://doi.org/10.25252/SE/2020/71674.