@phdthesis{oai:ynu.repo.nii.ac.jp:00010109,
 author = {Isaac, Yamikani Chilima},
 month = {Sep},
 school = {横浜国立大学},
 title = {Assessing Tax Revenue Productivity in Developing Countries: New Quantitative Evaluations and Determinants of Performance},
 year = {2019}
}