Lenny Brida, Mangatur Nababan, Riyadi Santosa, and Tri Wiratno. “Modulating Meaning in Discourse: A Systemic Functional Linguistics Approach to Graduation in A Motivational Book”. Forum for Linguistic Studies 7, no. 5 (May 21, 2025): 417–427. Accessed September 1, 2025. https://journals.bilpubgroup.com/index.php/fls/article/view/9394.