TARMIZI AR. IMPROVING THE QUALITY OF EDUCATION SERVICES THROUGH QUALITY MANAGEMENT SYSTEM ISO 9001: 2008. JKP UHAMKA [Internet]. 2019 Jun. 11 [cited 2024 Nov. 24];2(1):138-51. Available from: https://journal.uhamka.ac.id/index.php/jkp/article/view/3802