Vahrudin, J. ., Ambarwati, A. ., & Purnama, R. . (2020). RANCANG BANGUN SISTEM INFORMASI PREVENTIVE MAINTENANCE PT. KAI UNIT SINTELIS 8.5 SURABAYA GUBENG. Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi), 1(1), 085–092. https://doi.org/10.29407/inotek.v1i1.355