para referencia cited source
The Implementation of Cooperative Learning in Developing Students’ Speaking Ability at SMA Negeri 1 Malang. (Thesis)
Junette Cinthya Tamaela
improving speaking skills through cooperative learning
Using Cooperative learning to improve speaking skills
the implementation of cooperative learning
TEACHING SPEAKING USING COOPERATIVE LEARNING STRATEGY AT SEVENTH
CLASS STUDENTS OF MTS AL-LUTHFAH CILILIN
essential speaking book