I. T. Akinsola and E. E. Osundiran, “Writing Anxiety, Knowledge of and Attitude to Yoruba Orthography as Correlates of Secondary Students’ Achievements in Yoruba Essay Writing”, JES, vol. 8, no. 4, pp. 547–588, Oct. 2024, doi: 10.31258/jes.8.4.p.547-588.