Abubakar, A. G. ., M. R. . Mahmud, K. K. W. . Tang, and A. . Husaaini. “Presentation of a Wavelet‑Based Harmonic Model for Tidal Level Forecasting at Sabah and Sarawak”. Geomatics and Environmental Engineering, vol. 14, no. 4, Nov. 2020, pp. 5-23, doi:10.7494/geom.2020.14.4.5.