Chaidir, John, and Taufik Zulfikar. “Work Commitment As Mediation of the Relationship Between Competency and Work Motivation on Employee Performance in Asttatindo (Indonesian Expert and Skilled Engineering Association)”. MIX: JURNAL ILMIAH MANAJEMEN, vol. 13, no. 3, Oct. 2023, pp. 575-99, https://publikasi.mercubuana.ac.id/index.php/Jurnal_Mix/article/view/21144.