Sitompul, J., HUTAURUK, S. and Siahaan, S. 2022. Membuat Ruangan Bebas Covid 19 Dengan Robot Disinfektan Dibawah Kendali Smartphone. SPROCKET JOURNAL OF MECHANICAL ENGINEERING. 3, 2 (Feb. 2022), 73-83. DOI:https://doi.org/https://doi.org/10.36655/sprocket.v3i2.622.