Rahayu Budi Prahara, Nur Imam, and Indra Setiawan. “Analysis of Crack Defects in the Hanger Welding Area Using the DMAIC Method in the Heavy Equipment Industry”. TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika 11, no. 1 (January 27, 2024): 194-200. Accessed July 1, 2024. https://jurnal.sttmcileungsi.ac.id/index.php/tekno/article/view/975.