Gamon Chantajumrassin. 1995. Teaching English in the lower secondary schools of Chachoengsao province, Thailand : its status and problems. Institute of Graduate Studies, Central Luzon State University;
Gamon Chantajumrassin. (1995) Teaching English in the lower secondary schools of Chachoengsao province, Thailand : its status and problems . Central Luzon State University/Munoz, Nueva Ecija.
Gamon Chantajumrassin. Teaching English in the lower secondary schools of Chachoengsao province, Thailand : its status and problems. . Munoz, Nueva Ecija:Central Luzon State University, 1995.
Gamon Chantajumrassin. (1995) Teaching English in the lower secondary schools of Chachoengsao province, Thailand : its status and problems . Central Luzon State University/Munoz, Nueva Ecija.