Piñol, C.M.N. and Banzon, R.S. 2009. Obtaining finite populations in a Verhulst-free 8-bit Penna model with periodic change in reproduction. Proceedings of the Samahang Pisika ng Pilipinas, 27(1), SPP-2009-3C-01. URL: https://proceedings.spp-online.org/article/view/SPP-2009-3C-01.