Received: 24 April 2019
Accepted: 7 April 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: applicable, approved by the University of Dodoma (UDOM) IRRC through the College of Environmental Sciences (CoES); study respondents gave written informed consent before the commencement of data collection.
: Not applicable’.
: The authors declare that they have no competing interests.