Ornprapa Anugoolprasert และ Hiroshi Ehara. (2013) Preliminary Investigation of Growth and Physiological Characteristics of Sago Palm, Rattan and Yatay Palm against Aluminum Stress under Acidic Conditions. <i>Thai Journal of Science and Technology</i>, <i>2</i>(3), 200-217.Ornprapa Anugoolprasert และ Hiroshi Ehara. "Preliminary Investigation of Growth and Physiological Characteristics of Sago Palm, Rattan and Yatay Palm against Aluminum Stress under Acidic Conditions". Thai Journal of Science and Technology 2 (2013):200-217.Ornprapa Anugoolprasert และ Hiroshi Ehara. Preliminary Investigation of Growth and Physiological Characteristics of Sago Palm, Rattan and Yatay Palm against Aluminum Stress under Acidic Conditions. Thammasat University:ม.ป.ท. 2013.