Foydalanilgan web-sahifa va adabiyotlar: Fayllar.uz
Ziyo.net
Dastur.uz
WikiPedia.org
LearnSql.com
Medium.com
Geekflare.com
Ahuja, G., & Katila, R. (2004). Where do resources come from? The role of idiosyncratic situations. Strategic Management Journal, 25(8–9): 887–907.
Arthur, W. B. (1989). Competing technologies, increasing returns, and lock-in by historical events. Economic Journal, 99: 116–131.
Bush, V. (1954). Science: The Endless Frontier. Transactions of the Kansas Academy of Science. 48(3): 231–264.