Asraf H., M., Md Tahir, N., Dalila K.A., N., & Hussain, A. (2018). An Agricultural Tele-Monitoring Method in Detecting Nutrient Deficiencies of Oil Palm Leaf. International Journal of Engineering & Technology, 7(4.11), 266-270. https://doi.org/10.14419/ijet.v7i4.11.21390