
Books about Dragpa:
Dragpa Gyaltsan: The Hermit King (Sakya Kongma Series) by Christopher Wilkinson and Dragpa Gyaltsan (Sep 18, 2014)
Sakya Kongma Series: Jetsun Dragpa Gyaltsan: The Hermit King by Jetsun Dragpa Gyaltsan and Christopher Wilkinson (Jun 1, 2014)
Uniting Wisdom and Compassion: Illuminating the Thirty-Seven Practices of a Bodhisattva by Chökyi Dragpa [Wisdom... by Chökyi Dragpa (Jun 16, 0004)
By Soam Dragpa Panchen Overview of Buddhist Tantra (1st Edition) by Soam Dragpa Panchen (May 16, 1996)
Die Einheit von Weisheit und Mitgefühl: Erläuterungen zu den 37 Übungen eines Bodhisattva von Dragpa. Chökyi (... by Dragpa. Chökyi (1000)

Wiki information Dragpa:
Jetsun Dragpa Gyaltsen was a Tibetan spiritual leader and the third of the Five Sakya Parriarchs of Tibet. He was also the guru of the famous Sakya Pandita.
Trülku Drakpa Gyeltsen was an important Gelugpa lama and a contemporary of the 5th Dalai Lama. His Seat was the upper residence of Drepung Monastery, a famous Gelug gompa located near Lhasa.