Sartimbul, Aida, Erfan Rohadi, Mochammad Firdaus Ali, and Zulfan Khaidar. 2018. “Anomaly Technique for Expression the Indian Ocean Dipole in South Java Sea”. International Journal of Engineering & Technology 7 (4.36): 1258-60. https://doi.org/10.14419/ijet.v7i4.36.28967.