“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”. 2025. PERENNIAL 21 (2): 61-70. https://doi.org/10.24259/perennial.v21i2.44044.