Proceedings of the National IRPA (Intensification of Research in Priority Areas) Seminar (Agricultural Sector): Kuala Lumpur (Malaysia), 6-11 Jan 1992, p. 201-202
Proceedings of the National IRPA (Intensification of Research in Priority Areas) Seminar (Agricultural Sector): Kuala Lumpur (Malaysia), 6-11 Jan 1992, p. 203-204
Proceedings of the National IRPA (Intensification of Research in Priority Areas) Seminar (Agricultural Sector): Kuala Lumpur (Malaysia), 6-11 Jan 1992, p. 205-206