1. Rockefeller S.C., Spirit and Nature: Why the Environment is a Religious Issue – An Interfaith Dialogue (Beacon Press, Boston, 1992)
2. Vaughan-Lee Llewellyn, Spiritual Ecology: The Cry of the Earth (Golden Sufi Center, California, 2003)
3. The Reenchantment of Nature: The Denial of Religion and the Ecological Crisis (Doubleday / Galilee, New York, 2003)
4. Paulus II Pope Ioannes, Sollicitudo Rei Socialis (1987)
5. Eastern thought suggests references (Literature Publishing House, Hanoi, 1995) (https://ctext.org/shang-shu/great-plan).