Nurul Fitriana, D., I. Sudanawati Rozas, and N. Wahyudi. “Implementasi Business Process Improvement Menggunakan Pendekatan Lean Management”. Systemic: Information System and Informatics Journal, vol. 7, no. 1, Nov. 2021, pp. 25-36, doi:10.29080/systemic.v7i1.1308.