Sitorus, Y., Astiti, S., & Setyadi, R. (2023). Evaluation Of The Level Of Usefulness Of The “Jeknyong” Application Using The Computer System Usability Questionnare (CSUQ) Method. Journal of Informatics Information System Software Engineering and Applications (INISTA), 5(2), 92-103. https://doi.org/10.20895/inista.v5i2.1004