2009/2010 Guide utility radio stations : worldwide HF communication today / ed. Klingenfuss Publications
2011/2012 Guide to utility radio stations : worldwide HF communication today / ed. Klingenfuss Publications
2017/2018 Guide to utility radio stations : professional HF communication today / ed. Klingenfuss Publications
Código da insolvência e da recuperação de empresas : anotado / Luis Manuel Teles de Menezes Leitão