M. Laxman, “સ્વૈચ્છિક સંસ્થાઓ અંગેના આર્થિક સિદ્ધાંતો”, vp, vol. 53, no. 3, pp. 58–77, Sep. 2015, Accessed: Aug. 26, 2026. [Online]. Available: https://journal.gujaratvidyapith.org/index.php/vp/article/view/76