List of Articles fuzzy credibility theory Open Access Article Abstract Page Full-Text 1 - Fuzzy Mean-CVaR Portfolio Selection Based on Credibility Theory S. Babak Ebrahimi Amirsina Jirofti Matin Abdi Open Access Article Abstract Page Full-Text 2 - Investment portfolio optimization using value at risk under credibility theory with Z-numbers approach Amirsina Jirofti Amirabbas Najafi