Yovi, Efi Yuliati, and Nasruli Awaliyah. “Postural Analysis on Manual Pine Resin Collecting Work: Lifting Index and L5/S1 Compression-Shear Forces”. Jurnal Sylva Lestari 9, no. 3 (September 8, 2021): 368–378. Accessed April 27, 2024. https://sylvalestari.fp.unila.ac.id/index.php/JHT/article/view/514.