Ardiwan, R., Zulita , L. N. ., & Fredricka , J. . (2021). Application of the Six Sigma Method in Knowing the Level of Student Satisfaction with the Learning System in Schools. Jurnal Komputer, Informasi Dan Teknologi, 1(2), 353–359. https://doi.org/10.53697/jkomitek.v1i2.297