4 * http://www.dcs.napier.ac.uk/course-notes/sml/manual.html[A Gentle Introduction to ML].
7 * http://www.dcs.ed.ac.uk/home/stg/NOTES/[Programming in Standard ML '97: An Online Tutorial].
10 * <!Cite(Harper11, Programming in Standard ML)>.
13 * <!Cite(Tofte96, Essentials of Standard ML Modules)>.
16 * <!Cite(Tofte09, Tips for Computer Scientists on Standard ML (Revised))>.