Development of a low-cost NTP stratum 2 time synchronization system with hybrid RTC/NTP failover for remote Indonesian mosques. J. Soft Comput. Explor. [Internet]. 2025(e)ko azaroaren 15(e)an [aipatua 2026(e)ko abuztuaren 25(e)an];6(3):199-205. Available at: https://shmpublisher.com/index.php/joscex/article/view/570