Iwe pẹlẹbẹ 5, ti a pese silẹ fun Apejọ Agbaye lori Awujọ Alaye (Mar 2003). Wa ni English ati French.
Imọ-jinlẹ ni awujọ alaye: Imudara Imọye (2003)
Iwe pẹlẹbẹ 5, ti a pese silẹ fun Apejọ Agbaye lori Awujọ Alaye (Mar 2003). Wa ni English ati French.