Faturrahman, Mas Akhbar, et al. “Potential of Bintangur (Calophyllum spp.) Diversity in West Kalimantan As a Biology Learning Resource in Senior High School”. Jurnal Pijar Mipa, vol. 19, no. 6, Nov. 2024, pp. 1018-24, doi:10.29303/jpm.v19i6.7642.