Sureśvarācārya, K. P. Jog, Shoun Hino (1988), Sureśvara's vārtika on Madhu Brāhmaṇa, Motilal Banarsidass Publishers, ISBN978-81-208-0438-8, «... space i.e., Akasa which is in the earth as also in the stomach, though referred to separately, applies equally to the Supreme Brahman described in the Madhu Brahmana (a chapter of Brhadaranyaka Upanishad) ...».
Hermann Oldenberg (1988), The religion of the Veda, Motilal Banarsidass Publ., 1988, ISBN978-81-208-0392-3, archivado desde el original el 27 de junio de 2014, consultado el 4 de octubre de 2016, «... the Avesta, which is quite close to the Veda with regard to the terminology of Soma, does not know the equation 'Soma' = 'madhu'. Here, one does not meet the Vedic poet's fondness for playing with the idea of honey ...».
R.C. Dogra (1999), Thought Provoking Hindu Names, Star Publications, 1999, ISBN978-81-7650-316-7, «... Madhu (मधु) (m/f) Sweet, charming, pleasant, delightful, the juice or nector of flowers ... Madhur (मधुर) (a) Sweet, melodious, pleasant, agreeable ...».
Hermann Oldenberg (1988), The religion of the Veda, Motilal Banarsidass Publ., 1988, ISBN978-81-208-0392-3, archivado desde el original el 27 de junio de 2014, consultado el 4 de octubre de 2016, «... the Avesta, which is quite close to the Veda with regard to the terminology of Soma, does not know the equation 'Soma' = 'madhu'. Here, one does not meet the Vedic poet's fondness for playing with the idea of honey ...».
