The references used on this website are as follows:
Dilgo Khyentse Rinpoche. The Excellent Path to Enlightenment. Boulder, Colorado: Snow Lion, 1996.
Dudjom Rinpoche, Jigdrel Yeshe Dorje. A Torch Lighting the Way to Freedom. Shambhala. Kindle Edition.
Mingyur, Yongey. Turning Confusion into Clarity: A Guide to the Foundation Practices of Tibetan Buddhism. Shambhala. Kindle Edition.
Rinpoche, Khenchen Thrangu. Essentials of Mahamudra: Looking Directly at the Mind. Wisdom Publications. Kindle Edition.
Rinpoche, Khenchen Thrangu. Four Foundations of Buddhist Practice. Namo Buddha Publications. Kindle Edition.
Rinpoche, Khandro. This Precious Life: Tibetan Buddhist Teachings on the Path to Enlightenment. Shambhala. Kindle Edition.
Tromge, Jane. Ngondro Commentary: Instructions for the Concise Preliminary Practices. Padma Publishing. Kindle Edition.by