IngvildI.AlmåsIngvildI., AndersA.KjelsrudAndersA., Rags and Riches: Relative Prices, Non-Homothetic Preferences, and Inequality in India, „World Development”, 97, 2017, s. 102–121, DOI: 10.1016/j.worlddev.2017.04.001, ISSN0305-750X [dostęp 2020-06-02].
IngvildI.AlmåsIngvildI., AndersA.KjelsrudAndersA., Rags and Riches: Relative Prices, Non-Homothetic Preferences, and Inequality in India, „World Development”, 97, 2017, s. 102–121, DOI: 10.1016/j.worlddev.2017.04.001, ISSN0305-750X [dostęp 2020-06-02].