Soetopo, Hendyat, and Asep Sunandar Sultoni. “IMPROVEMENT OF TEACHING SERVICE QUALITY STANDARD AT VOCATIONAL SCHOOL, A CASE STUDY AT SMKN 4 MALANG”. Acta Scientiae et Intellectus 2, no. 2 (April 5, 2024): 7–15. Accessed September 19, 2024. http://actaint.com/index.php/pub/article/view/60.