Naveen Kumar. (2005). Elementary course on variational problems in calculus (1st.). Narosa.
Chicago Edition CitationNaveen Kumar. Elementary Course on Variational Problems in Calculus. 1st. New Delhi: Narosa, 2005.
Deismireacht MLANaveen Kumar. Elementary Course on Variational Problems in Calculus. 1st. Narosa, 2005.
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