How to deduct repeated values in crystal report?

SELECT f.feeid,
       f.studentid,
       ( s.first_name + last_name )AS studentname,
       b.branchname,
       c.coursename,
       y.yearname,
       se.sectionname,
       sem.semester,
       f.paymentmode,
       f.typeoffee,
       f.nameofthebank,
       f.totalfee,
       f.t                         otalpaidfee,
       f.balancefee,
       f.feestatus
FROM   studentfeedetails1 f
       inner join studentdetails s
         ON s.studentid = f.studentid
       inner join branchdetails b
         ON b.branchcode = s.branchcode
       inner join coursedetails c
         ON c.coursecode = s.coursecode
       inner join year_table y
         ON y.yearid = s.yearid
       inner join semester_table sem
         ON sem.semesterid = s.semesterid
       inner join section_table se
         ON se.sectionid = s.sectionid
WHERE  b.branchname = 'CSE'
       AND c.coursename = 'B-TECH'
       AND y.yearname = 'I'
       AND sem.semester = 'I'
       AND se.sectionname = 'A'
       AND f.typeoffee = 'Tution Fee