The calligraphy of the motion in expressing with the sīn and shīn

Tahbeer Al-Moushion in expressing with the Seen and Sheen for Majd Al-Din Al-Fayrouzabadi, verified and commented on by Muhammad Khair Mahmoud Al-Baqa'i, first edition 1403 AH / 1983 AD, Qutaiba Publishing, Printing, and Distribution, Damascus, 96 pages - cover - yellow paper