Maurya, Dr. Arun Kumar. 2020. “Functional Theory in Change of Geographical Form: Relevance and Importance: Bhaugolik Svaroop Ke Parivartan Mein Kriyaasheelata Siddhaant: Praasangikata Evan Mahatv”. International Journal of Research in Informative Science Application & Techniques (IJRISAT) 4 (4):8-18. https://doi.org/10.46828/ijrisat.v4i4.72.