(en) Tremper Longman, Song of Songs, vol. Volume 26, Wm. B. Eerdmans Publishing, (ISBN9780802825438, lire en ligne), p. 184.
persee.fr
Paul Chalus, « H.N. et A.L, Moldenke, Plants of the Bible (compte-rendu) », Revue d'histoire des sciences, nos 6-2, , p. 183 (lire en ligne).
researchgate.net
(en) Zohar Amar et David Iluz, The Paths of Daniel: Studies in Judaism and Jewish Culture in Honor of Rabbi Professor Daniel Sperber, Bar-Ilan University press, 15–27 p. (lire en ligne), chap. Balsam: the most expensive perfume plant in the ancient world.
worldcat.org
(en) Zohar Amar, Flora of the Bible: A New Investigation Aimed at Identifying All of the Plants of the Bible in Light of Jewish Sources and Scientific Research, Jerusalem, Rubin Mass, , 220 (s. v. חדק) (OCLC827829748).