Goeritno A, Setyawibawa I, Suhartono D. Designing a microcontroller-based half-duplex interface device drove by the touch-tone signal. INFOTEL [Internet]. 9Dec.2021 [cited 22Dec.2024];13(4):205-1. Available from: https://ejournal.ittelkom-pwt.ac.id/index.php/infotel/article/view/712