Dr. Duwa Hamisi Chengula. “The Use of Blended Cinder Aggregates for Concrete Mixes”. International Journal of Sciences: Basic and Applied Research (IJSBAR), Vol. 61, no. 1, Jan. 2022, pp. 44-61, https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/13626.