Nasution, A. B. ., Hrp, A. Y. N. ., Yudi, Y. and Fauzi, M. . (2024) “Implementation of OTP Code as Application Login Verification Via Whatsapp”, Indonesian Journal of Applied and Industrial Sciences (ESA), 3(4), pp. 395–402. doi: 10.55927/esa.v3i4.10225.