Hendryani, Atika, and Hestu Azhim. “Design Of Led Base Bell’s Palsy Therapy Device Using Microcontroller ATmega 8535”. SANITAS: Jurnal Teknologi Dan Seni Kesehatan, vol. 10, no. 1, Oct. 2019, pp. 14-25, doi:10.36525/sanitas.2019.2.