Kevin Octavianus Manurung. Design of a Mobile-Based Online Guitar Learning Platform Using the Agile Method. J. inov. infor. dan bisnis. digital [Internet]. 6 Maret 2026 [dikutip 17 April 2026];1(2):65-9. Tersedia pada: https://www.ioinformatic.org/index.php/JIIBD/article/view/2223