Hafid, A. G. THE EFFECTIVENESS OF USING CROSSING FORMULAS OF TENSES TABLE IN LEARNING ENGLISH 16 TENSES AT XII GRADE STUDENTS OF MA MADANI ALAUDDIN PAOPAO IN ACADEMIC YEAR OF 2015/2016. Vol. 2, no. 1, June 2016, pp. 96-109, doi:10.24252/Eternal.V21.2016,A7.