(1)
Bagus Setiawan, D.; Khumaidi, A.; Priyonggo, P.; Basuki Rahmat, M.; Sutrisno, I.; Nasikhin, K.; Wisnu Sahputera, A. Ball Direction Prediction for Wheeled Soccer Robot Goalkeeper Using Trigonometry Technique. ATCSJ 2019, 2, 39-51.