1. Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Malaysian Remote Sensing Agency, Kuala Lumpur, Malaysia
3. Institute of Plantation Studies, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
4. Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor, Malaysia