Nattana Leeraharattanarak. 2002. The development of reading and writing supplementary activities for an elementary Thai in-country course designed by the institute of language and culture for rural development, Mahidol University. Field of Study Language and Culture for Communication and Development, Mahidol University;

Nattana Leeraharattanarak. The development of reading and writing supplementary activities for an elementary Thai in-country course designed by the institute of language and culture for rural development, Mahidol University. . Bangkok:Mahidol University, 2002.

Nattana Leeraharattanarak. (2002) The development of reading and writing supplementary activities for an elementary Thai in-country course designed by the institute of language and culture for rural development, Mahidol University . Mahidol University/Bangkok.