PrawonoSigit Ari, ikhwanul Qiram, and MukhtarAnas. 2018. “Pengaruh Baling – Baling Terhadap Kerugian Tekanan Aliran Udara Di Dalam Pipa”. V-MAC (Virtual of Mechanical Engineering Article) 3 (2), 17-19. https://ejournal.unibabwi.ac.id/index.php/vmac/article/view/631.