Kesediaan membayar (willingness to pay) retribusi pelayanan persampahan kebersihan hunian apartemen di Provinsi DKI Jakarta per unit per bulan = willingness to pay waste cleaning services retribution residential apartment in Province of DKI Jakarta per unit per month

Implementasi peraturan daerah Kota Depok tentang pemungutan retribusi pada Pasar Agung dan Pasar Cisalak di Depok = Implementation of Depok City regional regulation about collection of retribution on Agung Market and Cisalak market in Depok

Evaluasi kebijakan pemungutan retribusi daerah dengan sistem elektronik retribusi e-retribusi di DKI Jakarta = Evaluation of local taxation by electronic retribution system e-retribution in DKI- Jakarta

Administrasi pemungutan retribusi tempat pelelangan ikan di TPI Muara Angke Provinsi DKI Jakarta = Adminstration of fish auction retribution collection at Muara Angke Fish Auction Place in DKI Jakarta Province

Kajian pendapatan daerah propinsi DKI Jakarta melalui retribusi parkir : menuju Pelaksanaan Pajak Parkir