Fathimahhayati, L.D. et al. 2021. Working posture analysis on oyster mushroom farmers using OWAS method in Lempake, Samarinda, East Kalimantan. Jurnal Ilmiah Pertanian. 18, 1 (Aug. 2021), 1–11. DOI:https://doi.org/10.31849/jip.v18i1.7197.