Kernelisasi metode fuzzy C-means berbasis ruang eigen untuk pendeteksian topik pada Twitter = Kernelized eigenspace based fuzzy C-means for topic detection in Twitter

Fuzzi sets and fuzzy logic : theory and applications

Fuzzy evidence in identification, forecasting and diagnosis

Fuzzy sets and their applications to cognitive and decision processes / edited by Lotfi A. Zade ...[et al.]

Set theory and logic / Robert R. Stoll