Thapa, Prem Jung . Modelling the efficiency of family and hired labour: illustrations from Nepalese agriculture / by Prem Jung Thapa. - England : Ashagate Publishing Limited , 2003 - xvi, 220p : ISBN: 0-7546-1853-6 Subjects--Topical Terms: Family farms-Statistical methods Dewey Class. No.: X:9.4445 / P3