“Pengaruh Aktivitas Fisik Terhadap Produktivitas Kerja Karyawan PetroChina International Jabung Ltd”. Riwayat: Educational Journal of History and Humanities 9, no. 2 (April 7, 2026): 3948–3955. Accessed April 9, 2026. https://ejournal.yaydi.com/index.php/riwayat/article/view/797.