Nichanal Lamsam และ Peerayuth Charoensukmongkol. (2020) The effect of CEO transformational leadership and organizational ethical culture on corporate sustainability practice of firms in Thailand. National Institute of Development Administration:ม.ป.ท.Nichanal Lamsam และ Peerayuth Charoensukmongkol. 2020. The effect of CEO transformational leadership and organizational ethical culture on corporate sustainability practice of firms in Thailand. ม.ป.ท.:National Institute of Development Administration;Nichanal Lamsam และ Peerayuth Charoensukmongkol. The effect of CEO transformational leadership and organizational ethical culture on corporate sustainability practice of firms in Thailand. ม.ป.ท.:National Institute of Development Administration, 2020. Print.