Lotey Gyeltshen และ Taweesak Sawangmek. (2014) The factors of parent and family involvement affecting student academic performance in urban primary schools of bhutan. Naresuan University:ม.ป.ท.Lotey Gyeltshen และ Taweesak Sawangmek. 2014. The factors of parent and family involvement affecting student academic performance in urban primary schools of bhutan. ม.ป.ท.:Naresuan University;Lotey Gyeltshen และ Taweesak Sawangmek. The factors of parent and family involvement affecting student academic performance in urban primary schools of bhutan. ม.ป.ท.:Naresuan University, 2014. Print.