Natpassorn Riankamol. 2008. A survey study of vocabulary learning strategies of gifted English students at Triam Udomsuksa School in the first semester of academic year 2008. , Thammasat University;
Natpassorn Riankamol. (2008) A survey study of vocabulary learning strategies of gifted English students at Triam Udomsuksa School in the first semester of academic year 2008 . Thammasat University/Bangkok.
Natpassorn Riankamol. A survey study of vocabulary learning strategies of gifted English students at Triam Udomsuksa School in the first semester of academic year 2008. . Bangkok:Thammasat University, 2008.
Natpassorn Riankamol. (2008) A survey study of vocabulary learning strategies of gifted English students at Triam Udomsuksa School in the first semester of academic year 2008 . Thammasat University/Bangkok.