ENGELIN MANOPO, M.; KHADDAFI, M. .; INDRAYANI, I. OPTIMIZATION OF MANPOWER IN SEAMLESS PIPE THREADING MANUFACTURE BATAM. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET), [S. l.], v. 1, n. 4, p. 199–206, 2022. DOI: 10.54443/ijset.v1i4.22. Disponível em: https://ijset.org/index.php/ijset/article/view/22. Acesso em: 11 sep. 2025.