Rajagukguk K, Suyito. Effect of Pattern Coating Thickness on Surface Roughness and Porosity of Nodular Cast Iron (FCD) 450 Using Lost Foam Casting Method. cylinder [Internet]. 15 Oktober 2018 [dikutip 3 Juli 2024];4(1):7-13. Tersedia pada: https://ejournal.atmajaya.ac.id/index.php/cylinder/article/view/4193