Setyawan, Wahyu, and Dodit Cahyo Nugroho. “Peran Strategi Manajemen Tenaga Kerja Outsourcing Di PT Beton Jaya Manunggal Tbk Dalam Optimalisasi Produktivitas Dan Efisiensi Biaya”. RIGGS: Journal of Artificial Intelligence and Digital Business 4, no. 2 (July 5, 2025): 4652–4656. Accessed February 1, 2026. https://journal.ilmudata.co.id/index.php/RIGGS/article/view/1299.