Putra, A. 2022. Model GI-GI: Student Centred-Based Active Learning System Uses Scientific Approach in order to Realize the Four SDGs. Improvement: Jurnal Ilmiah untuk Peningkatan Mutu Manajemen Pendidikan. 9, 02 (Dec. 2022), 105-121. DOI:https://doi.org/10.21009/improvement.v9i2.31354.