Fitriani Y, Afrahamiryano A, Kamal A. Pengembangan Buku Saku Biologi SMA Materi Sistem Ekskresi Manusia Kelas XI (Uji Coba di SMAN 2 Lembang Jaya). edj [Internet]. 2019Feb.12 [cited 2025Feb.7];1(1):37-46. Available from: http://ojs.ummy.ac.id/index.php/edj/article/view/115