2024-07-17T15:36:00Z https://academicjournals.org/oai-pmh/handler The argument 'oai%3Aacademicjournals.org%3AIJPDS%3A2571CC058011' (value='') included in the request is not valid. The argument 'identifier' (value='oai%3Aacademicjournals.org%3AIJPDS%3A2571CC058011') included in the request is not valid. The combination of the given values results in an empty list.