Abueva, J. V. (1989). No decision yet on UP's service Units. U.P. Newsletter.
Lua i Stíl Chicago (17ú heag.)Abueva, Jose V. "No Decision yet on UP's Service Units." U.P. Newsletter 1989.
Lua MLA (9ú heag.)Abueva, Jose V. "No Decision yet on UP's Service Units." U.P. Newsletter, 1989.
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