Niwat Chankul. (1989) A study on use of thin napier grass (Pennisetum spp.) as low-cast building boards. Mahidol University,:ม.ป.ท.Niwat Chankul. 1989. A study on use of thin napier grass (Pennisetum spp.) as low-cast building boards. ม.ป.ท.:Mahidol University,;Niwat Chankul. A study on use of thin napier grass (Pennisetum spp.) as low-cast building boards. ม.ป.ท.:Mahidol University, 1989. Print.