- liveinternet.ru users/_ghbhjif/blog/page2.htmlEach layer has a set of connections that link it to the other layers of the network, making the network a directed acyclic graph.
- bookchld.livejournal.com 64903.htmlhttp://proglang.su/html/introduction http://www.sitehere.ru/category/osnovy-html http://nesmelov.ru/ http://www.wisdomweb.ru/HTML/html-first.php.
- ziurdraude.livejournal.com 17947.html4. Модификаторы доступа. http://www.javenue.info/post/java-modifiers-summary http://www.quizful.net/post/features-of-the-application-of-modifiers-in-java.
- luckyea77.livejournal.com 2706383.htmlhttps://pythonworld.ru/samouchitel-python https://losst.ru/osnovy-programmirovaniya-python http://pythontutor.ru/.