V. L. F. Damopolii, E. T. S. . Sujatna, D. . Suganda, and R. M. . Amalia, “Ideational Meaning of Material Process in EFL Students’ Problem-Solving Text: A Frame of Systemic Functional Linguistics”, QAJ, vol. 5, no. 3, pp. 349–367, Aug. 2025.