Effect of Hot Water Extraction on Contact Angle of Octomeles sumatrana and Duabanga moluccana Woods and Its Correlation to the Extractive Content and Anatomical Structure: Pengaruh Hot Water Extraction terhadap Sudut Kontak Octomeles sumatrana dan Duabanga moluccana dan Kaitannya terhadap Zat Ekstraktif dan Struktur Anatomi Kayu. perennial [Internet]. 2025 Oct. 31 [cited 2026 Aug. 22];21(2):61-70. Available from: https://journal.unhas.ac.id/index.php/perennial/article/view/44044