Nurraharjo, Eddy, and Jati Wibowo. 2020. “PENERAPAN METODE GEO FORMULA JARAK PADA LUASAN 2D OBYEK 3D”. Proceeding SENDI_U, July, 16-20. https://www.unisbank.ac.id/ojs/index.php/sendi_u/article/view/7954.