“OLEORESIN PRODUCTION, TURPENTINE YIELD AND COMPONENTS OF PINUS MERKUSII FROM VARIOUS INDONESIAN PROVENANCES”. JOURNAL OF TROPICAL FOREST SCIENCE 27, no. 1 (January 28, 2015): 136–141. Accessed October 12, 2025. https://jtfs.frim.gov.my/jtfs/article/view/902.