Sukirno, Sukirno, and Fuad Achmadi. “Analisis Perawatan Mesin Casting Melalui Pendekatan Total Productive Maintenance (TPM)”. Proceeding Mercu Buana Conference on Industrial Engineering, vol. 3, no. 1, July 2021, pp. 19-27, https://publikasi.mercubuana.ac.id/index.php/mbcie/article/view/20301.