Sadiva, A., Pebrian, R. and Supriady, H. (2026) “Correlation between Vocabulary Mastery and Writing Skill Development of Sixth-Grade Students at SDIT Insan Utama 1 Pekanbaru”, (الطموحات ) EL-THUMUHAT, 9(2), pp. 75–89. doi: 10.25299/elthumuhat.2026.16798.