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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Contact Person :
Dewi Retnaningati, S.Pd., M.Sc.
Biology Education Departement
Faculty of Teacher Training and Education
University of Borneo Tarakan
Amal Lama St. No. 1
Tarakan City, North Kalimantan, Indonesia
Mobile Phone (Telp./WA): 082313986329
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