1. Bram Adams and Shane McIntosh. 2016. Bram Adams and Shane McIntosh. 2016.
2. Charu C Aggarwal and ChengXiang Zhai. 2012. Charu C Aggarwal and ChengXiang Zhai. 2012.
3. Mining text data. Springer Science & Business Media. Mining text data. Springer Science & Business Media.
4. John H Aldrich and Forrest D Nelson. 1984. John H Aldrich and Forrest D Nelson. 1984.
5. Linear probability logit and probit models. Vol. 45. Sage. Linear probability logit and probit models. Vol. 45. Sage.