1. The Poisson Regression Analysis for Occurrence of Floods
2. Tests for independence in a bivariate negative binomial model
3. N. Chou and D. Steenhard, “Bivariate count data regression model-A SAS macro program”, in Proceedings SAS Global Forum 2011, 355 (2011).
4. Estimation for the bivariate Poisson distribution
5. A. C. Cameron and P. Johansson, Bivariate Count Data Regression using Series Expansions: with Applications, Department of Economics Discussion Paper, Working Paper, No. 98-15 (University of California, Davis, 1998).