The Effect of Audiovisual Materials onNutrition Knowledge Among Mothers of Undernourished Toddlers at the Larangan 2026 e Service Area of the Larangan Community Health Center in 2026. preventif [Internet]. 2026 Aug. 30 [cited 2026 Aug. 31];17(2):14-28. Available from: https://jurnal.fkm.untad.ac.id/index.php/preventif/article/view/2654