https://pragprog.com/titles/swdddf/domain-modeling-made-functional/ https://pragprog.com/titles/swdddf/domain-modeling-made-func..., even though it's F# rather

https://pragprog.com/titles/swdddf/domain-modeling-made-functional/ https://pragprog.com/titles/swdddf/domain-modeling-made-func..., even though it's F# rather than Haskell. And maybe https://leanpub.com/algebra-driven-design https://leanpub.com/algebra-driven-design depending on the exact use case.