Pardimin, Siti Rochmiyati, Zainnur Wijayanto, and Didi Supriadi, “A NEEDS ANALYSİS OF FLİPPED CLASSROOM-BASED MATHEMATİCS LEARNİNG MODEL”, J Arch.Egyptol, vol. 17, no. 5, pp. 69-93, Nov. 2020.