[1]
L. P. D. Sianturi, D. E. Silalahi, and C. N. Purba, “Improving Students’ Writing Ability based on Higher Order Thinking Skills (HOTS) Questions at 8th Grade in SMP Swasta Kartika 1-4 Pematangsiantar”, JETAFL, vol. 6, no. 2, pp. 1-17, Jun. 2020.