Janjang Subekti, Purwanto, Sri Rahayu. The Effect of Leadership Style and Mental Competency Guidance on Employee Performance with Work Engagement as a Mediating Variable at the Medium Customs Type, Customs and Excise Controlling and Servicing Office of Juanda. IJoMS [Internet]. 2026 Jun. 23 [cited 2026 Jun. 23];5(1):1086-97. Available from: https://jurnal.erapublikasi.id/index.php/IJOMS/article/view/2564