- Okoli,
Angus (January 4, 1966). "9,000 Tons of
Steel and
Engineering Ingeunity".
Daily Times. Lagos. "River
Niger Bridge, Onitsha". ASA DUBLIN. Retrieved...
- 1973 Jeon
Pungjin (전풍진) Choe Jae**** (최재희-) Lee Chunnyeong [ko] (이춘녕) U
Ingeun (우인근) Shim
Jaewan (심재완) – 1974 – Ko Byeongik [ko] (고병익) Kim
Hyeonggyu (김형규)...