Eka Wiyono, Kiki Farida Ferine, M. Isa Indrawan. The Effect of Competency and Motivation on the Effectiveness of Goods Services Procurement with the Implementation of the Board of Directors Regulation of PT PLN (Persero) Number 0018.P/Dir/2023 as an Intervening Variable for Employees of PT PLN (Persero) UID North Sumatera. Equivalent [Internet]. 2026 May 20 [cited 2026 May 21];4(1):1228-44. Available from: https://jurnal.dokicti.org/index.php/equivalent/article/view/1816