Saputra, Eka, Guruh Novan Aldianto, and Aisyah Zahra Maghfirah. “Union And Employer Collaboration On Company Productivity X”. Jurnal Indonesia Sosial Teknologi 4, no. 10 (October 25, 2023): 1621–1629. Accessed December 26, 2024. https://jist.publikasiindonesia.id/index.php/jist/article/view/755.