Jalāl al-Dīn Rūmī (Maulana), Jelaluddin Rumi, Kabir Helminski, Andrew Harvey (2005). “The Rumi Collection: An Anthology of Translations of Mevlâna Jalâluddin Rumi”, p.4, Shambhala Publications
Joseph Franklin Rutherford (1921). “The Harp of God: Proof Conclusive that Millions Now Living Will Never Die; a Text-book for Bible Study Specially Adapted for Use of Beginners; with Numerous Questions and Scripture Citations ...”