1.1 the environmental problems in the Nam Phong, Khon Kaen is a local administrative organizations, Nam Phong, Analysis of 14 agencies use to select specific
1.2 samples were used in training the environment is the secondary school students มันพิทยาคม Grove School, Nam Phong, Khon Kaen. The 50 people from designated as grade 1 - 6.The 32, head of 6 classroom, classroom and deputy chief of 12 people by choosing แบบเจาะจง
.
การแปล กรุณารอสักครู่..
