[Berry 1999] Berry, W. (1999). The selected poems of Wendell Berry. Counterpoint Press.
[Bettermann 2002] Bettermann, H., Bonin, D. v., Frühwirth, M., Cysarz, D., & Moser, M. (2002). Effects of speech therapy with poetry on heart rate rhythmicity and cardiorespiratory coordination, International Journal of Cardiology, 84(1), 77–88. Publication 12104068 on PubMed/NCBI (subscription access).
[Dreamer 1999] Dreamer, O. M. (1999). The invitation, First Edition. HarperOne.
[Hafiz 1999] Shīrāzī, K. S. M. H.; Ladinsky, D. (translation) (1999). The gift. Penguin Compass.
[Hafiz 2003] Shīrāzī, K. S. M. H.; Ladinsky, D. (translation) (2003). The subject tonight is love: 60 wild and sweet poems of Hafiz. Penguin Compass.
[Lehmer 1929] Lehmer, N. D. (1929). The music and poetry of the American Indians, The Poetry Review, 333–340.
[Rabearivelo 1954] Rabéarivelo, J. J.; Hughes, L. (translator) (1954). Flute players, Phylon (1940-1956), 15(4), 363–364. Publication 272845 on JSTOR (subscription access).
[Roberts-E 1991] Roberts, E., & Amidon, E. (1991). Earth prayers from around the World: 365 prayers, poems, and invocations for honoring the Earth. HarperOne.