Hi sispanys ria
here you can find all ICAO annexes. Remember that information on States complying or not complying with SARPS is given in the supplements, which can also be downloaded.
This is a
site by Eurocontrol that offers almost all European AIPs as pdf documents (free registration required). However, I'm not sure if information on single engine commercial ops is to be published in the AIP. Maybe it's worth a try.
Good luck