Ulfa, M., Setiaji, B., Trisunaryanti, W., & Triyono, T. (2016). Paper Strength Development with Beating and Polyamideamine-epichlorohydrin (PAE). Indonesian Journal of Physics and Nuclear Applications, 1(3), 123–127. https://doi.org/10.24246/ijpna.v1i3.123-127