Tonga

Tonga, officially 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 2024. Read More.

Open Access Percentage

60%

Total
Publications

323

Total Open
Publications

194

Total
Citations

7.4K

Open Access
Percentage

60%

Total
Publications

323

Total Open
Publications

194

Total
Citations

7.4K

Wikipedia

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Breakdown

Publisher Open

22%

Both

33%

Other Platform Open

Closed

42%

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 55%

Hybrid 28%

No Guarantees 17%

Other Platform Open

Domain 58%

Institution 51%

Other Internet 19%

Public 6%

Preprint 0%

Other Platform Locations

Name	Platform Type	Publications
PubMed Central	Domain	66
DOI	Other Internet	17
auckland.ac.nz OAI-PMH Repository	Institution	9
James Cook University - ResearchOnline at James Cook University	Institution	8
Figshare	Public	8
Unknown Repository	Other Internet	6
University of Melbourne - Minerva Access	Institution	6
University of New South Wales, Sydney, Australia - UNSWorks	Institution	5
Europe PMC	Domain	5
Victoria University - Victoria University Research Repository	Institution	3

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Data updated 18 August 2025