දේශීය ගොවිතැන
Gunasekara, Parakrama S.
දේශීය ගොවිතැන = deshiya govithaena - Colombo Godage, 1994. - 56p.; 21 cm.
955-20-1364-X
Production Economics
Economics
338.18 / GUN
දේශීය ගොවිතැන = deshiya govithaena - Colombo Godage, 1994. - 56p.; 21 cm.
955-20-1364-X
Production Economics
Economics
338.18 / GUN