McWhorter, Kathleen T.
College reading and study skill
Pearson/Longman, 2007
 Buku Teks SO
Tendency of players is trial and error ; case study of cognitive classification in the cognitive skill games
[Fakultas Ilmu Komputer Universitas Indonesia, Public Vocational High School. Multimedia Studies Program, Bangil, Jawa Timur], 2012
 Artikel Jurnal
L. Aruna
Framework for ranking service providers of federated cloud architecture using fuzzy sets
2016
 Artikel Jurnal
L. Aruna
Framework for ranking service providers of federated cloud architecture using fuzzy sets
Faculty of Engineering, Universitas Indonesia, 2016
 Artikel Jurnal
Kamke, E.
Theory of sets
Dover, 1950
 Buku Teks SO