PENGGUNAAN METODE TREE SAMPLING DALAM PENDUGAAN STRUKTUR TEGAKAN, BERAT BASAH DAN VOLUME TEGAKAN GAMAL (Gliricidia sepium): The Use of Tree Sampling Methods in Estimating Stand Structure, Wet Weight and Volume Gamal (Gliricidia Sepium) Stands. J. ForestrIndo 2025, 2 (2), 405-415.