Tessalonika, Regita C., Frendy A. O. Pelleng, and Sandra Asaloei. “Pengaruh Efisiensi Kerja Terhadap Kinerja Karyawan PT. Aneka Gas Industri Bitung”. Productivity 2, no. 5 (October 6, 2021): 413–416. Accessed May 7, 2024. https://ejournal.unsrat.ac.id/v3/index.php/productivity/article/view/36115.