F. Syamsudin, “Semiannual Kelvin Waves Propagation along the South Coast of Sumatra-Jawa-Bali and the Lesser Sunda Islands Observed by TOPEX/POSEIDON and ERS-1/2 Satellites”, J. Eng. Technol. Sci., vol. 36, no. 2, pp. 133-139, Dec. 2013.