K S Bhagyalaxmi, Jadhav Bhagyashree P, and Deshpande Swati. “IMPORTANCE OF KALA IN NASYA KARMA- A CONCEPTUAL STUDY”. International Journal of Applied Ayurved Research, vol. 3, no. 3, Sept. 2017, pp. 531-4, https://ijaar.in/index.php/journal/article/view/453.