00498nam a22001697a 4500003000800000008004100008041001200049082001600061100002900077245007800106260005100184300002400235650001800259650001300277650002300290650001500313WUSLLib230208b           ||||| |||| 00| 0 eng d  aEnglish  a002bMPHIL   aGajanayake, K.G.M.C.P.B.  aAnalysis of profit efficiency among tea processing factories in Sri Lanka  aPeradeniya: bUniversity of Peradeniya, c2007  axiv, 179p.; c30cm   aTea industry   aEconomy   aLabour absorption   aBlack tea