Swaroop, Y. S. (1994). ARPU statistical compendium. Agro-Climatic Regional Planning Unit : Sardar Patel Institute of Econ. & Soc. Research.
Chicago-referens (17:e uppl.)Swaroop, Y. S. ARPU Statistical Compendium. Ahmedabad: Agro-Climatic Regional Planning Unit : Sardar Patel Institute of Econ. & Soc. Research, 1994.
MLA-referens (8:e uppl.)Swaroop, Y. S. ARPU Statistical Compendium. Agro-Climatic Regional Planning Unit : Sardar Patel Institute of Econ. & Soc. Research, 1994.
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