“GENETIC STUDIES IN A TROPICAL PINE - PINUS KESIYA III. THE MATING SYSTEM IN FOUR POPULATIONS FROM NORTHERN THAILAND” (1991) JOURNAL OF TROPICAL FOREST SCIENCE, 4(1), pp. 37–44. Available at: https://jtfs.frim.gov.my/jtfs/article/view/1974 (Accessed: 23 November 2025).