Huda, Miftahul, and Widyastuti Andriyani. “Multi-Area OSPF Analysis Using Virtual Link and GRE Tunnel”. Eduvest - Journal of Universal Studies 5, no. 2 (February 20, 2025): 1804–1819. Accessed November 2, 2025. https://eduvest.greenvest.co.id/index.php/edv/article/view/1710.