NAYAR & SHARMA. (2013). EMPOWERING MENTAL MATH - BOOK 7. PITAMBAR PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)NAYAR & SHARMA. EMPOWERING MENTAL MATH - BOOK 7. PITAMBAR PUBLICATIONS, 2013.
Lua MLA (9ú heag.)NAYAR & SHARMA. EMPOWERING MENTAL MATH - BOOK 7. PITAMBAR PUBLICATIONS, 2013.
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