Phakwipha Sutthiwaree และผู้แต่งคนอื่นๆ. (2010) Research and Development of Spring Tine Attached to Small Tractor for Sugarcane Weeder. <i>Thai Agricultural Research Journal</i>, <i>28</i>(2), 157-169.Phakwipha Sutthiwaree และผู้แต่งคนอื่นๆ. "Research and Development of Spring Tine Attached to Small Tractor for Sugarcane Weeder". Thai Agricultural Research Journal 28 (2010):157-169.Phakwipha Sutthiwaree และผู้แต่งคนอื่นๆ. Research and Development of Spring Tine Attached to Small Tractor for Sugarcane Weeder. Department of Agriculture:ม.ป.ท. 2010.