Penelitian ini bertujuan untuk mengetahui kelayakan produk e-magazine sebagai sumber belajar bagi siswa sma pada materi ekosistem. jenis penelitian ini adalah research and development (r&d) dengan model borg and gall (1983). adapun langkah-langkah model borg and gall (1983) yang digunakan pada penelitian ini dimulai dari penelitian dan pengumpulan data awal, perencanaan, pengembangan produk awal, uji coba produk dan revisi produk. analisis data menggunakan pendekatan deskriptif kualitatif dan kuantitatif. hasil pengembangan produk e-magazine diperoleh nilai validasi dari ahli materi dengan rata-rata 90% (sangat layak), ahli media dengan rata-rata 100% (sangat layak), dan praktisi dengan rata-rata 84% (sangat layak). uji coba produk dilakukan dengan melakukan uji coba terbatas dengan jumlah sampel sebanyak 12 siswa kelas x di sman 1 sebatik tengah. hasil uji coba terbatas diperoleh rata-rata 99% dengan kriteria sangat layak. sehingga e-magazine yang berjudul “e-magazine about mangrove in area sebatik island bordering of indonesian-malaysian” sangat layak digunakan sebagai sumber belajar siswa. kata kunci: e-magazine, mangrove, potensi lokal, sumber belajar,

The study aimed to determine the feasibility of the e-magazine product as a learning resource for high school students on ecosystems material. this research used a research and development (r&d) method with the borg and gall (1983) model. the steps of the borg and gall (1983) model used in this study started from research and initial data collection, planning, initial product development , product testing and product revision. data was analysed using descriptive qualitative and quantitative approaches. the results of the development of the e-magazine product obtained validation values from material experts with an average of 90% (very feasible), media experts with an average of 100% (very feasible) and practitioners with an average of 84% (very feasible). the product trial was carried out by conducting a limited trial with a sampel of 12 students of class x at sman 1 sebatik tengah. the results of the limited trial obtained an average of 99% with very feasible criteria. so, the e-magazine entitled “e-magazine about mangrove in area sebatik island bordering of indonesian-malaysian” is very suitable to be used as a source of student learning. keywords: e-magazine, mangroves, local potential, learning resources