KHULKAR MIRZAKHMEDOVA; LOBAR AYUPOVA; ADOLAT KENJAYEVA; DILFUZA ABBASOVA; SHOHRUXMIRZO ISMAILOV; GULNOZA ODILOVA; I.B.SAPAEV; KHABIBA YUSUPOVA. System Architecture and Performance Analysis of VoIP-Based Communication Tools for English Language Skill Development in Classrooms. National Journal of Antennas and Propagation, [S. l.], v. 7, n. 1, p. 134–147, 2025. DOI: 10.31838/NJAP/07.01.18. Disponível em: https://antennajournal.com/index.php/antenna/article/view/147. Acesso em: 27 jun. 2025.