EFFECT OF INITIAL SPACING ON GAS PERMEABILITY OF POPULUS NIGRA var. BETULIFOLIA. JOURNAL OF TROPICAL FOREST SCIENCE, [S. l.], v. 23, n. 3, p. 305–310, 2022. Disponível em: https://jtfs.frim.gov.my/jtfs/article/view/628. Acesso em: 5 nov. 2025.