[2] On the same year after his departure from the Gadjah Mada University, Suwardi began working at the National Atomic Energy Agency.
[1] After serving as dean, Suwardi was appointed as the secretary of the National Atomic Energy Agency under director-general Achmad Baiquni from 1974 to 1977.
[1] During his tenure, Suwardi oversaw efforts to socialize atomic energy to the general public by introducing it to science teachers.
[5] Suwardi continued to taught at the University of Indonesia after the end of his tenure at the National Atomic Energy Agency.
Due to the lack of technology that were available at that time, the academic staff had to use dry transfer lettering for mathematical and statistical symbols.
The couple had two children, Mimmim Arumi Wardiati and Ririn Arminish Wulandari, who were both professors at the University of Indonesia.