Hidayat, S., and M. O. Tjia. “Karakteristik Model Batere Sekunder Menggunakan Elektroda PANI-NMP”. Indonesian Journal of Physics, Vol. 13, no. 3, Oct. 2016, pp. 165-8, https://ijphysics.fi.itb.ac.id/index.php/ijp/article/view/57.