Herianto, Hasnor Khotimah, Yuda Irawan, Elsayed T. Helmy, & Farhad Waseel. (2022). Design of Library Noise Detection Tools Based On Voice Pressure Parameters Using Nodemcu Esp8266 . Journal of Applied Social and Informatics Science, 1(1), 21–27. Retrieved from https://e-journal.ptti.info/index.php/jasis/article/view/90