SITEPU, Dhea Natasya; SITUMEANG, Sonya Lauri; SEMBIRING, Ribby Violin; SARAGIH, Dyvia Chayani; SILALAHI, Dumaris E. Effectiveness Of Language Assessment Tests: An Observation Based On Reliability, Validity, Authenticity, Practicality, And Washback Principles In Class 7a At SMP Negeri 4 Pematangsiantar. Innovative: Journal Of Social Science Research, [S. l.], v. 5, n. 4, p. 4711–4722, 2025. DOI: 10.31004/innovative.v5i4.20752. Disponível em: http://j-innovative.org/index.php/Innovative/article/view/20752. Acesso em: 8 sep. 2026.