S. SYAFIRA IRWANSYAH, V. SINAGA, M. SIHOMBING, and H. HERMAN, “Implementation of TOEFL Listening Strategies and Practice Test for Grade XI IPA 3 Students of SMA Swasta HKBP 1 Pematangsiantar”, ijllh, vol. 2, no. 3, pp. 08–18, Jul. 2026, doi: 10.64137/31078729/IJLLH-V2I3P102.