1.
Istiana R, Rahmayanti H, Sumargo B. Marine environmental education learning system recommendation model based on student needs analysis in Indonesian coastal areas. CJES [Internet]. 2021 Oct. 31 [cited 2024 Nov. 22];16(5):2236-47. Available from: https://un-pub.eu/ojs/index.php/cjes/article/view/6305