Wedagama, D. M. P. W. “The Analysis of Household Car and Motorcycle Ownerships Using Poisson Regression (Case Study: Denpasar-Bali)”. Jurnal Teknik Sipil, vol. 16, no. 2, Aug. 2009, pp. 103-12, doi:10.5614/jts.2009.16.2.6.