Andriyani, D., S. . Muspiroh, S. N. . Aini, D. Haryadi, and W. Wahyudi. “Optimization of the Work Environment and Observance of Work Discipline in Improving Employee Performance”. International Journal of Applied Finance and Business Studies, vol. 11, no. 4, Feb. 2024, pp. 949-56, doi:10.35335/ijafibs.v11i4.245.