Kencho _ และ Niramol Ariyaarpakamol. (2018) The returns to education in Bhutan: employing a pseudo-panel approach. National Institute of Development Administration:ม.ป.ท.Kencho _ และ Niramol Ariyaarpakamol. 2018. The returns to education in Bhutan: employing a pseudo-panel approach. ม.ป.ท.:National Institute of Development Administration;Kencho _ และ Niramol Ariyaarpakamol. The returns to education in Bhutan: employing a pseudo-panel approach. ม.ป.ท.:National Institute of Development Administration, 2018. Print.