Piyadasa Ratnayake, Saliya De Silva

Saga University Economic Society, Faculty of Economics, Saga University c2018

所蔵館22館

edited by Piyadasa Ratnayake and Saliya De Silva

Economic Association of Saga University, Faculty of Economics, Saga University c2016

所蔵館82館

Piyadasa Ratnayake & Saliya De Silva

Saga University Economic Society, Faculty of Economics, Saga University c2013

所蔵館57館

edited by W.D. Lakshman and Piyadasa Ratnayake

Economic Association of Saga University, Faculty of Economics, Saga University c2007

所蔵館107館

Piyadasa Ratnayake

Karunaratne & Sons 2004

所蔵館4館

edited by Masayoshi Tsutagawa & Piyadasa Ratnayake

Center for Regional Economic Studies, Faculty of Economics, Saga University c2000

所蔵館125館

Piyadasa Ratnayake

Karunaratne and Sons c1992

:pbk.

所蔵館15館

椎名重明編

御茶の水書房 1987.2

所蔵館128館