TANJUNG, R.; HASIBUAN, R.; AGUS, B. A.; ANGGRAINI, D.; ISMANTO, W. Impact of Communication, Motivation, Work Discipline, and Environment on Employee Performance: A Study at a Manufacturing Firm. Academia Open, v. 8, n. 1, p. 10.21070/acopen.8.2023.7155, 7 Aug. 2023.