Modular Arithmetic - Math bibliographies - in Harvard style

In-text: (Modular arithmetic - Wikipedia, 2022)

Your Bibliography: En.wikipedia.org. 2022. Modular arithmetic - Wikipedia. [online] Available at: <https://en.wikipedia.org/wiki/Modular_arithmetic#/media/File:Clock_group.svg> [Accessed 10 January 2022].

In-text: (ISBN - Wikipedia, la enciclopedia libre, 2022)

Your Bibliography: Es.wikipedia.org. 2022. ISBN - Wikipedia, la enciclopedia libre. [online] Available at: <https://es.wikipedia.org/wiki/ISBN#/media/Archivo:EAN-13-ISBN-13.svg> [Accessed 11 January 2022].

In-text: (Esteban, 2022)

Your Bibliography: Esteban, E., 2022. ISBN: Qué es, para qué sirve y cuál es su importancia. [online] Todo eReaders. Available at: <https://www.todoereaders.com/isbn.html> [Accessed 12 January 2022].

In-text: (Library Guides: Modular Numbers and Cryptography: What is modular arithmetic?, 2022)

Your Bibliography: Libraryguides.centennialcollege.ca. 2022. Library Guides: Modular Numbers and Cryptography: What is modular arithmetic?. [online] Available at: <https://libraryguides.centennialcollege.ca/c.php?g=717548&p=5121821> [Accessed 13 January 2022].