Iskandar, I., Y. D. . A. Wahyudiono, N. Widajati, and Z. Zulkifli. “Factors Related With Unsafe Action in Palm Oil Harvesters at PT. Priatama Riau Kebun Rupat Island”. The Indonesian Journal of Occupational Safety and Health, vol. 12, no. 2, Aug. 2023, pp. 246-55, doi:10.20473/ijosh.v12i2.2023.246-255.