10.17028/rd.lboro.7951523.v1 Ken Chatterton Ken Chatterton Cement block partially lined for boys Loughborough University 2019 WEDC School Latrines Technical Diagram International and Development Communication 2019-05-02 11:52:13 Figure https://repository.lboro.ac.uk/articles/figure/Cement_block_partially_lined_for_boys/7951523 Cement block partially lined for boys