Ningsih, M. (Effort Increasing Learning Math Results through Cooperative Learning Method of Contextual Teaching and Learning Type in Students of Grade IV D SD Negeri 187 Pekanbaru): UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA MELALUIMETODE PEMBELAJARAN KOOPERATIF TIPE CONTEXTUAL TEACHING AND LEARNING PADA SISWA KELAS IV D SD NEGERI 187 PEKANBARU. Perspektif 2018, 9, 49-58.