1. Estate management system for mechanized rice production;Abdul Wahid,1993
2. Al-Suhaibani, A.S., Bedri, A.A., Babeir, A.S., Kilgour, J., 1994. A Mobile Instrumentation Package for Monitoring Tractor Performance. Research bulletin No. 40 Agricultural Engineering, King Saud University, Riyadh.
3. ASAE S209.5: agricultural tractor test code;ASAE Standards,1997
4. ASAE S217.11: three-point free-link attachment for hitching implements to agricultural wheel tractors;ASAE Standards,1997
5. ASAE S278.6: attachment of implements to agricultural wheel tractors equipped with attaching coupler;ASAE Standards,1997