Sarikin, Sarikin, Hedwig Adianto Mau, and Nur Hakim. “KEPASTIAN HUKUM TERHADAP PERJANJIAN KERJA BERSAMA DALAM PERSPEKTIF HUKUM KETENAGAKERJAAN”. Journal of Innovation Research and Knowledge 5, no. 2 (July 1, 2025): 1907–1920. Accessed July 5, 2025. https://bajangjournal.com/index.php/JIRK/article/view/10679.