(2006). The Effectiveness Of The Esa (Engage, Study And Activate) Technique In Teaching The Degrees Of Comparison To The Second Year Students Of MAN 1 Magelang In School Year 2005/2006 . Magelang: Fakultas Keguruan dan Ilmu Pendidikan Universitas Tidar.
"The Effectiveness Of The Esa (Engage, Study And Activate) Technique In Teaching The Degrees Of Comparison To The Second Year Students Of MAN 1 Magelang In School Year 2005/2006". Magelang: Fakultas Keguruan dan Ilmu Pendidikan Universitas Tidar, 2006. Text.