murtinah V, ruhiyat D, ruchaemi A, Marjenah M. The Litter Production and Nutrients Return of Teak Plantation Forest at East Kalimantan, Indonesia. IJSBAR. 2016;29(2):99-108. Accessed September 18, 2025. https://gssrr.org/JournalOfBasicAndApplied/article/view/6215