Pennapa Kongrattanachok. (2005) Carbon sequestration in cassava and para rubber plantation, Rayong province. Mahidol University,:ม.ป.ท.Pennapa Kongrattanachok. 2005. Carbon sequestration in cassava and para rubber plantation, Rayong province. ม.ป.ท.:Mahidol University,;Pennapa Kongrattanachok. Carbon sequestration in cassava and para rubber plantation, Rayong province. ม.ป.ท.:Mahidol University, 2005. Print.