Singh, M. N. (2011). Principles of economics. ABD.
Tohutoru Kātū Chicago (17th ed.)Singh, Mukti Nath. Principles of Economics. Jaipur: ABD, 2011.
Tohutoro MLA (9th ed.)Singh, Mukti Nath. Principles of Economics. ABD, 2011.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.