A managerial perspective on institutions' administration readiness to diffuse blended learning in higher education: concept and evidence by Bokolo Jr., Anthony, Kamaludin, Adzhar, Romli, Awanis, Mat Raffei, Anis Farihan, Eh Phon, Danakorn Nincarean, Abdullah, Aziman, Gan, Leong Ming, Shukor, Nurbiha A., Nordin, Mohd. Shukri, Baba, Suria