Ratnawati, Fajar, Niky Hardinata, and Supendi. “Development of a Certainty Factor-Based Expert System for Nutrition Consultation and Stunting Prevention in Coastal Areas: A Case Study of Bengkalis Regency”. JURNAL TEKNOLOGI DAN OPEN SOURCE 8, no. 2 (December 1, 2025): 539 - 553. Accessed December 7, 2025. http://ejournal.uniks.ac.id/index.php/JTOS/article/view/4858.