Putra, A. F. P. ., Ningrum, E. O. ., Adiguna, E. ., Garin, M. ., Hanif, R. R. ., & Surono, A. . (2025). Characterization of Hydroxyapatite From Kupang Shells and Its Synthesis with Polycaprolactone for 3D Printing Filament. IPTEK The Journal of Engineering, 9(2), 47–51. Retrieved from https://journal.its.ac.id/index.php/joe/article/view/8179