Her first appointment lasted four years .
Then she was appointed again to serve in 1979 , but she resigned in 1980 when the university merged with Nanyang University , to allow Nanyang 's former Dean to continue in the post .
Her first appointment lasted four years and then she was appointed again to serve in 1979 , but she resigned in 1980 when the university merged with Nanyang University , to allow Nanyang 's former Dean to continue in the post .