Roziqin, Mohamad, 		Joni, Koko, AND 		Ulum, Miftachul.
"The Design and Build A Field Tennis Robot With Wifi Based Hand Gesture Recognition Using PID Method" <em>Jurnal Sistem Telekomunikasi Elektronika Sistem Kontrol Power Sistem dan Komputer</em> [Online], Volume 1 Number 1 (28 January 2021)