Master dissertation free help

I have a master dissertation this year i choose this topic *3. Teacher Talk vs. Student Talk: How Different Classroom Interaction Patterns Affect EFL Learners' Speaking Fluency*
_Study Focus: Research the effect of different interaction patterns (teacher-centered vs. student-centered) on speaking fluency in EFL learners. The goal would be to determine whether reducing teacher talk-time increases student participation and speaking proficiency. Can u send me some titles or books about this or suguestt more informatios

Help.