Syahrial, S., A. Asrial, D. A. Kurniawan, and N. D. Kiska. “Improving Environmental Care Characters Through E-Modules Based on Local Wisdom Mangrove Ecotourism”. Jurnal Ilmiah Sekolah Dasar, vol. 5, no. 3, Aug. 2021, pp. 378-86, doi:10.23887/jisd.v5i2.35360.