1. Anil Kumar C Panikkar MVN 1995. The species of Porphyra CA Agardh from Kerala. Seaweed Res. Utiln 17:151-160.
2. Arasaki S 1982. Advances in Phycological research in fishery sciences in Japan. Japanese Journal of Phycology 30:390-400.
3. Ardré E 1970. Contribution à Pétude des algues marines du Portugal. I - La flore. Portugaliae Acta Biologica (B) 10:1-423.
4. Brodie JA Irvine LM 1997. A comparison of Porphyra dioica sp. nov. and P. purpurea (Roth) C. Ag. (Rhodophyta Bangiophycidae) in Europe. Cryptogamie Algologie 18:283-296.
5. Chapman VJ 1980. Laver or nori industry and Carregeenan or Irish moss. In: Chapman VJ ed. Seaweeds and their uses. London UK: Chapman and Hall 98-240 pp.