2024. The Effect of Riddle Teaching Technique on The Eleventh Grade Students’ Vocabulary Mastery at SMK Swasta GKPS 2 Pematangsiantar. TOFEDU: The Future of Education Journal. 3, 5 (Dec. 2024), 1281–1286. DOI:https://doi.org/10.61445/tofedu.v3i5.197.