Hakikat kapitalisme dan keterbatasannya telaah atas pemikiran kapitalisme dari Ayn Rand

Helping dalam pemikiran etika ayn rand = Ethic of helping using ayn rand thoughts

Egoisme manusia dalam novel Mendhung karya Yes Ismie Suryaatmadja = Human selfishness in the Mendhung novel written by Yes Ismie Suryaatmadja

Justifikasi Etis dalam Relasi Friends with Benefits dikaji dengan Kerangka Teori Etika Egois AYN RAND = Ethical Justification in Friend Relationship with Benefits Assessed with AYN RAND'S Egoism Theoretical Framework

The rationality of science/ W.H. Newton-Smith.