SELECT university.Univer_ID,university.Univer_name, uni_type.UniType_name,university.Rf_name,reference_data.Rf_ID,GROUP_CONCAT(reference_data.Rf_name) as name
FROM university
LEFT JOIN user
ON university.Univer_name = user.Name_user AND university.Univer_ID = user.Org_ID
LEFT JOIN uni_type
ON university.UniType_ID = uni_type.UniType_ID
WHERE FIND_IN_SET(reference_data.Rf_ID,university.Rf_name)
ORDER BY university.Univer_ID