Setyawan, Muhammad Indra, and Rilo Chandra Muhamadin. “ANALISA CRACK IMPELLER PADA CIRCULATING WATER PUMP (CWP) PLTU PAITON 9 DI PT PLN NUSANTARA POWER UMRO GRESIK”. ENIGMA: Engineering in Green Machinery, vol. 3, no. 1, July 2026, pp. 150-7, https://journal.umg.ac.id/index.php/enigma/article/view/10946.