SITORUS, Erwin; ALFATH, Nurhikmah. OPTIMASI JUMLAH TENAGA KERJA BERDASARKAN WAKTU STANDARD. Jurnal Sistem Teknik Industri, [S. l.], v. 19, n. 2, p. 10–14, 2018. DOI: 10.32734/jsti.v19i2.368. Disponível em: https://idjpcr.usu.ac.id/jsti/article/view/368. Acesso em: 19 dec. 2025.