1
Argitaratua 1999
Available in Education Source.
Baliabide elektronikoa Conference Proceeding Aldizkaria
2
Argitaratua 1977
Available in Education Source.
Baliabide elektronikoa Conference Proceeding Aldizkaria
3
Argitaratua 1982
Available in Education Source.
Baliabide elektronikoa Conference Proceeding Aldizkaria
4
Available in Fuente Académica Plus.
Baliabide elektronikoa Conference Proceeding Aldizkaria
5
Argitaratua 1912
Available in ATLASerials PLUS, Religion Collection.
Baliabide elektronikoa Conference Proceeding Aldizkaria
6
Available in ATLASerials PLUS, Religion Collection.
Baliabide elektronikoa Conference Proceeding Aldizkaria