Rosid, Ibnu Abdul, et al. “Experimental Analysis of the Effect of Printing Parameters of 3D Printer FDM Machine on Dimensional Error and Surface Hardness of PLA+ Material”. Jurnal INTECH Teknik Industri Universitas Serang Raya, vol. 11, no. 2, Dec. 2025, pp. 80-86, https://doi.org/10.30656/intech.v11i2.11210.