https://www.lastampa.it/torinosette/2015/03/04/news/prendere-la-madre-lasciare-la-madre-di-prafulla-stefania-contu-nella-sede-della-casa-editrice-psiche-1.37666515


https://www.sololibri.net/Liwa-ih-Frammenti-di-Luce.html


https://www.yogajournal.it/memoria-cala-perotti/