Compare peddling and other types of retail trade:Hoffman, K. Douglas, ур. (2005). Marketing principles and best practices (3 изд.). Thomson/South-Western. стр. 407. ISBN978-0-324-22519-8. Приступљено 2018-05-03. „Five types of nonstore retailing will be discussed: street peddling, direct selling, mail-order, automatic-merchandising machine operators, and electronic shopping.”
Federico, Giovanni; Tena-Junguito, Antonio (2019). „World Trade, 1800-1938: A New Synthesis”. Revista de Historia Economica - Journal of Iberian and Latin American Economic History. 37 (1): 9—41. ISSN0212-6109. doi:10.1017/S0212610918000216.
Federico, Giovanni; Tena-Junguito, Antonio (2019). „World Trade, 1800-1938: A New Synthesis”. Revista de Historia Economica - Journal of Iberian and Latin American Economic History. 37 (1): 9—41. ISSN0212-6109. doi:10.1017/S0212610918000216.