1. Whiting , D.A.M. Proc. of Market Development of Palm Oil Products The International Trade Centre UNCTAD/GATT of the United Nations 1976
2. Chan , K.S. C.F. Chooi Ibid. 1982
3. Chooi , C.F. Paper presented at Workshop on Review of Palm Oil Mill Effluent Treatment Technology vis-a-vis Department of Environment Standards Kuala Lumpur 1984
4. Lim , K.H. S.K. Quah D. Gillies B.J. Wood Ibid. 1984