Nanda, S., & Nanda, S. a. D. (2010). Fuzzy mathematical concepts. Narosa.
Lua i Stíl Chicago (17ú heag.)Nanda, S., agus S. and Das Nanda. Fuzzy Mathematical Concepts. New Delhi: Narosa, 2010.
Lua MLA (9ú heag.)Nanda, S., agus S. and Das Nanda. Fuzzy Mathematical Concepts. Narosa, 2010.
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