“Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Kontekstual Pada Materi Ekosistem Kelas VII SMPN Tanjung Jabung Timur: The Development of Contextual Based Student Worksheet (LKPD) in the Material of Class VII Ecosystem, SMP Tanjung Jabung Timur”, jmpmipa, vol. 7, no. 1, pp. 23–33, Jan. 2018, doi: 10.22437/jmpmipa.v7i1.7279.