Faktor-faktor yang mempengaruhi sikap mahasiswa Program Penyetaraan D II PGSD Universitas Terbuka terhadap kegiatan tutorial / oleh: Joko Santoso D.U. Naskah lembaran kampanye perlucutan senjata dunia : tanya jawab United Nations Security Council 2245th meeting, 20 August 1980, New York United Nations Security Council 2025th meeting, 20 July 1977, New York United Nations General Assembly 16th plenary meeting, 20 September 2005, New York United Nations General Assembly 20th plenary meeting, 22 September 2005, New YorkUnited Nations General Assembly 15th plenary meeting, 20 September 2005, New YorkUnited Nations Security Council 2025th meeting, 20 July 1977, New YorkKenjataan-kenjataan pokok P.B.BThe United Nations as a political institution / H.G. Nicholas