INFLUENCE OF PRINCIPALâ„¢S LEADERSHIP ON TEACHER MOTIVATION AND PARENTâ„¢S STUDENTS SATISFACTION TOWARD THE QUALITY OF EDUCATION SERVICE IN PELANGI EDUCATIONAL INSTITUTION MEDAN. (2019). JURNAL HANDAYANI PGSD FIP UNIMED, 10(2), 37-53. https://doi.org/10.24114/jh.v10i2.16048