Pradana, A. W., & Irmawati, D. (2020). Pendeteksi Bola Pada Robot Penjaga Gawang Menggunakan Metode Hough Circle. Elinvo (Electronics, Informatics, and Vocational Education), 5(1), 21–31. https://doi.org/10.21831/elinvo.v5i1.20794