Ratih, Ratih Madya Septiana, Nunuk Supriyatno Nunuk, 和 Slamet Riyanto Slamet. 《Socio Demographic Factors and Work Performance of Forest Workers in Cajuput Leaf Harvesting at RPH Nglipar, KPH Yogyakarta》. Jurnal Wasian 7, no. 2 (十二月 30, 2020): 111–120. 见于 七月 16, 2026. https://pub.kehutanan.unismuh.ac.id/index.php/wasian/article/view/107.