“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, vol. 3, no. 5, Dec. 2024, pp. 1281-6, https://doi.org/10.61445/tofedu.v3i5.197.