00478 a2200133 4500082001500000100002900015245011100044260006600155300002100221440002500242650002900267650001300296650003500309 a331.3bWID aWidanapathirana, A. S. aPre -rehabilitation situation of the gal oya left bank schemebanalysis of socio- economic characteristics aColombobAgrarian Research and Training Institutec1986g1986 axiii,129p.c29cm aResearch study No:69 aConditions of employment aPensions aOther conditions of employment