1. Budge, A. E. W. 1900. Egyptian Religion. Crown Publications (1975 reprint).
2. -. 1913. The Papyrus of Ani: The Theban Recension of the Book of the Dead. The Medici Society.
3. Conard, H. S. 1905. The Waterlilies: A Monograph of the GenusNymphaea. The Carnegie Institution of Washington.
4. Descourtilz, A. 1822. Flora Pittoresque et Medicinale des Antilles. VII. Pichard, Paris.
5. Delphaut, J. & J. Balansard. 1941. Sur les proprietes du Nenuphar(Nymphaea alba). Compt. Rend. Hebd. Seances Mem. Soc. Biol. 135: 1665–1670.