Izkustvo i vlast v Bŭlgarii︠a︡ prez 70-te godini na XX vekPlamen V. Petrov · First published 2021Open the Tome
Konstantin ShtŭrkelovKonstantin Shtŭrkelov, Adelina Fileva, Krasimir Iliev, Plamen V. Petrov, Elisaveta Stancheva · First published 2020Open the Tome
Applied Heath Care AnalyticsMark Albert, Plamen Petrov, Rajeev Ronanki · First published 2018Open the Tome
