Analysis Characteristics Of Pendulum Oscillation In PLTGL-SBI.S. Arif, I.K.A.P Utama, R. Hartono, J. Prananda, R. Isnaini and T. Rachmattra AE3S Web Conf., 43 (2018) 01005DOI: https://doi.org/10.1051/e3sconf/20184301005