Oil Palm Industry Economic Journal Vol. 17 (2) September 2017 p. 1-7 Labour Productivity of Harvesters by Country of Origin: A Case Study in Peninsular Malaysia by Siti Mashani Ahmad*; Azman, I*; Ali Zulhusni Ali Nordin*; Kamalrudin Mohamed Salleh* and Balu, N* DOI: Available Online: FULL TEXT | DOWNLOAD ARTICLE