1     1    1    2     2    2    4     4    4
                                                                     .     .    .    .     .    .     .    .    .
                                                                     1     1    1    2     2    3    1     2    3
                                                                     .     .    .    .     .    .     .    .    .
                                                                     1     3    4    1     2    1    2     1    2
                                                                     .     .    .    .     .    .     .    .    .
                                                                     1     1    1    1     1    1    1     1    1
            1     Periodical Mid-term exam / Course work             √    √     √    √               √     √    √
            2     Practical exam                                     √    √     √    √    √     √    √     √
            3     Written exam                                       √    √     √    √          √
            4     Oral                                               √    √     √    √