DARNI BR BARUS; KHOLILUL KHOLIK. Analysis of the Influence of Competency, Work Motivation, and Work Environment on Employee Performance of PT Graha Sakura Jaya (Grand Sakura Hotel) Medan . International Journal of Health, Economics, and Social Sciences (IJHESS), v. 6, n. 4, p. 1173~1182, 30 Oct. 2024.