Tonga
Tonga, officially known as the Kingdom of Tonga, is an island country in Polynesia, part of Oceania. The country has 171 islands, of which 45 are inhabited. Its total surface area is about 750 km2, scattered over 700,000 km2 in the southern Pacific Ocean. Derived from Wikipedia licensed CC-BY-SA.
Open Access statistics for Tonga, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
63%
Total
Publications
927
Total Open
Publications
586
Total
Citations
15K
Open Access
Percentage
63%
Total
Publications
927
Total Open
Publications
586
Total
Citations
15K
Breakdown
Publisher Open
29%
Both
27%
Other Platform Open
7%
Closed
37%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 37%
188
Hybrid 47%
241
No Guarantees 16%
81
Other Platform Open
Institution 63%
199
Domain 53%
170
Other Internet 12%
39
Public 8%
24
Preprint 4%
14
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 174 |
doaj.org OAI-PMH Repository | Institution | 120 |
DOI | Other Internet | 29 |
Figshare | Public | 26 |
University of Auckland | Institution | 16 |
Unknown Repository | Other Internet | 13 |
James Cook University | Institution | 12 |
Research Square | Preprint | 7 |
National Institute of Informatics | Institution | 7 |
The University of Melbourne | Institution | 6 |