Lal & Ashok Gupta. Upkar's an analytical approach for comprehensive reasoning. Upkar Prakashan.
Chicago Edition CitationLal i Ashok Gupta. Upkar's an Analytical Approach for Comprehensive Reasoning. Agra: Upkar Prakashan.
Cita MLALal i Ashok Gupta. Upkar's an Analytical Approach for Comprehensive Reasoning. Upkar Prakashan.
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