Journals
Publish with us
Publishing Partnership
About PEN
PEN Academic
Executive Management & Editors
Contact
Policies
Editorial Policies
Peer Review Policy
Advertising Policy
Research Ethics Policy
Informed Consent Policy
Publication Objections
Open Access
Creative Commons
Publication Fees
Waiver Policy
Digital Archiving
Copyright Options
DOI Number
Home
DOI Number
14.07.2024 / 4.852 defa okundu.