Text and Data Mining valid from 2019-07-12
Received: 18 March 2019
Accepted: 5 July 2019
First Online: 12 July 2019
Ethics approval and consent to participate
: The study was ethically approved by Madda Walabu University research and technology transfer directorate. Written consent was obtained from each study participants and confidentiality was assured throughout the data collection.
: Not applicable.
: The author declares no competing interests.