Last updated: September 5, 2026
By accessing and using the Dr. Astto Academic Publication Portal, you accept and agree to be bound by these Terms of Service.
All books, articles, journals, and research materials published on this portal are protected by copyright law. Purchasing a publication grants you a personal, non-transferable license to read and use the content. Reproduction or distribution requires explicit written permission.
All orders are subject to availability and acceptance. Prices are listed in Nigerian Naira (NGN). Payment must be completed before access is granted to digital publications.
Refunds are available for duplicate orders or technical issues preventing access. Requests must be made within 7 days of purchase. Digital publications cannot be refunded after download.
You agree not to misuse this website, attempt unauthorized access, share purchased digital content, or use content for commercial purposes without permission.
The portal and its contents are provided "as is." We make no warranties about the accuracy, completeness, or suitability of any content for a particular purpose.
We reserve the right to modify these terms at any time. Continued use of the portal after changes constitutes acceptance of the new terms.
Questions about these terms may be directed to kosjoat@gmail.com.