Sitepu DN, Situmeang SL, Sembiring RV, Saragih DC, Silalahi DE. 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 [Internet]. 2025 Jul. 28 [cited 2026 Apr. 17];5(4):4711-22. Available from: https://j-innovative.org/index.php/Innovative/article/view/20752