Plot-Based Classification of Macronutrient Levels in Oil Palm Trees with Landsat-8 Images and Machine Learning. - Zhi Hong Kok; Abdul Rashid Mohamed Shariff; Siti Khairunniza-Bejo; Hyeon-Tae Kim; Tofael Ahamed; See Siang Cheah; Siti Aishah Abd Wahid (Remote. Sens., 2021)