Alsoufi, Mohammad, and Abdulrhman Elsayed. “Quantitative Analysis of 0% Infill Density Surface Profile of Printed Part Fabricated by Personal FDM 3D Printer”. International Journal of Engineering & Technology, vol. 7, no. 1, Jan. 2018, pp. 44-52, https://doi.org/10.14419/ijet.v7i1.8345.