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Sankore

Named after the University of Sankore in Timbuktu — one of the world’s oldest centres of learning. Every figure here is computed from work-level records in our own graph, never copied from a source’s summary count.

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Coverage is partial and says so. A country appears with its research output only once its works have been swept; until then the portal shows whatever the graph happens to hold for it and labels it as exactly that.

Modified Estimator of Finite Population Variance under Stratified Random Sampling

2023PublicationOpen access

10.3390/asec2023-16308 Full text3 citations

Authors

2 authors across 3 institutions in 1 country.

Yahaya ZakariFirst authorCorresponding
- Ahmadu Bello University (NG)
Isah MuhammadSenior author
- Hassan Usman Katsina Polytechnic (NG)
- Binyaminu Usman Polytechnic (NG)

Fields

Assignment is probabilistic — a work belongs to several fields in proportions.

Survey Sampling and Estimation Techniqueslevel 3 · 1.00
HIV, Drug Use, Sexual Risklevel 3 · 0.92

Sources

Several sources describing one work is the point — it means the record rests on more than one authority.

openalexseen September 9, 2026
2023 · 3 citations
https://openalex.org/W4390549975

Modified Estimator of Finite Population Variance under Stratified Random Sampling · Sankore