Kibara Manyeki, J. ., and B. Kotosz. “Empirical Analysis of the Wagner Hypothesis of Government Expenditure Growth in Kenya: ARDL Modelling Approach”. Theory, Methodology, Practice – Review of Business and Management, vol. 13, no. 02, Dec. 2017, pp. 45-57, doi:10.18096/TMP.2017.02.05.