Jaran Onkao. 2009. A survey study of the factors affecting learning to speak English of the employees at Stars Microelectronics [Public] Co.,Ltd. , Thammasat University;
Jaran Onkao. (2009) A survey study of the factors affecting learning to speak English of the employees at Stars Microelectronics [Public] Co.,Ltd. . Thammasat University/Bangkok.
Jaran Onkao. A survey study of the factors affecting learning to speak English of the employees at Stars Microelectronics [Public] Co.,Ltd. . Bangkok:Thammasat University, 2009.
Jaran Onkao. (2009) A survey study of the factors affecting learning to speak English of the employees at Stars Microelectronics [Public] Co.,Ltd. . Thammasat University/Bangkok.