Rudi Kurniawan Arief, Silvy Arianti, Herry Agung Probowo, *Erry Yulian T. Adesta. 2020. “A Preliminary Study of Technological and Economic Impact of Fdm 3d Printing’s Preferences”. International Journal of Advanced Science and Technology 29 (7), 2942-49. http://sersc.org/journals/index.php/IJAST/article/view/18202.