1. Abo-El-Ela, A. M., Baiuomy, M. A., & Hilal, A. A. (2001). Alternaria rot on plants and fruits of prickly pear in Egypt: Recent outbreak of a destructive disease and its management. Egyptian Journal of Applied Science, 16(9), 93–107.
2. Acevedo, E., Badilla, I., & Nobel, P. S. (1983). Water relations, diurnal acidity changes and productivity of a cultivated cactus, Opuntia ficus-indica. Plant Physiology, 72(3), 775–780.
3. Aguilar, Z. A. (2007). Nopal verdura. Memoria del 1er Congreso de Investigaci.n y Transferencia de Tecnolog.a Agropecuaria y Forestal en el Distrito Federal, 24–25 septiembre 2007, 120p.
4. Aounallah, M. K., Jebari, A., & Nefzaoui, A. (2005). Characterization of three Opuntia ficus-indica (L.) Miller cultivars grown at Cap Bon (Tunisia) and their reblooming capacity. Cactusnet Newsletter, 9, 3–7.
5. Arba, M. (2009). Rooting of one year and second year old cladodes of cactus pear. Acta Horticulturae, 811, 303–307.