Refer to (Wang 2017) (Minsky, Madhavapeddy, and Hickey 2013), example of references
Minsky, Yaron, Anil Madhavapeddy, and Jason Hickey. 2013. Real World Ocaml: Functional Programming for the Masses. " O’Reilly Media, Inc.".
Wang, Liang. 2017. “Owl: A General-Purpose Numerical Library in Ocaml. CoRR Abs/1707.09616 (2017).”