Yuningsih, Nani, Kunlestiowati Hadiningrum, and Sardjito Sardjito. “ANALOGI MODEL OSILATOR HARMONIK LOGARITMIK PENDULUM TORSI DENGAN FLUKTUASI NILAI TUKAR RUPIAH TERHADAP US DOLLAR”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) 70 (October 30, 2018): SNF2018-PA. Accessed June 9, 2025. http://103.8.12.212:33180/unj/index.php/prosidingsnf/article/view/9172.