This book by Sri Simad Gour Govinda Swami contains eight lectures on the qualities and the position of the bona fide guru.
                        Author: Sri Srimad Gour Govinda Swami Maharaja
                              Publisher: Tattva Vicara Publications
          Language: English
          PUR binding
          Original release date: February 27, 2016
          Number of pages: 250 page
          
        
https://www.amazon.in/Makes-Krsna-Appear-Your-Heart/dp/098759883X