I was reading one today I think on a similar vein to those you mention
https://library.oapen.org/bitstream/handle/20.500.12657/75844/9781800647886.pdf?sequence=1#page=226
I was reading one today I think on a similar vein to those you mention
https://library.oapen.org/bitstream/handle/20.500.12657/75844/9781800647886.pdf?sequence=1#page=226