Syah TYR, Nurohim A, Hadi DS. Lean Six Sigma Concept in The Health Service Process in The Universal Health Coverage of BPJS Healthcare (Healthcare and Social Security Agency). UII-ICABE [Internet]. 2020 Feb. 18 [cited 2024 May 7];1(1):71-88. Available from: https://journal.uii.ac.id/icabe/article/view/14696