Vera Kochergina‘s most comprehensive textbook on Sanskrit in pdf format for your e-library.
The book is scanned from the 1956 edition, the one to have been my constant reference in this language since my last high-school years, recommended, therefore, without any doubt.
English title: Vera Kochergina “Sanskrit”, 1956
Original title (Russian): Вера Кочергина “Учебник санскрита”, 1956
First published in the Levinarium Telegram Channel (now closed and deleted)