Syafrizaldi, Iswahyu Pranawukir, Robbi Rahim, Mohamad Sudi, and Slamet Riyadi. “Comparative Analysis of Communication Strategies in Promoting Csr Programs: Pertamina Vs Petronas”. Jurnal Studi Komunikasi 7, no. 3 (November 28, 2023): 713 - 727. Accessed May 20, 2024. https://ejournal.unitomo.ac.id/index.php/jsk/article/view/7385.