P. I. P. . Putro, S. Sarjito, B. W. . Febriantoko, and A. S. . Darmawan, “Database Development in Using and Maintaining Machine and its accessories at SMK Muhammadiyah Kartasura and Jatinom Klaten in Community service ”, voc, vol. 2, no. 2, pp. 36–43, Jan. 2023.