Alfaro Calderón, G. G. (2022). The second generation effects in business management. Unidad Editorial UPTC.
Lua i Stíl Chicago (17ú heag.)Alfaro Calderón, Gerardo Gabriel. The Second Generation Effects in Business Management. Unidad Editorial UPTC, 2022.
Lua MLA (9ú heag.)Alfaro Calderón, Gerardo Gabriel. The Second Generation Effects in Business Management. Unidad Editorial UPTC, 2022.
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