Figure 4.
The map presents countries shaded according to the number of publications, using a scale shown at the right ranging from one to thirty-five. Darker shading represents higher publication counts. Countries with moderate to high counts appear in darker shades, while countries with fewer publications appear in lighter shades. Regions without data remain unshaded. India shows the darkest shading indicating the highest count near thirty-five. Several countries across Europe, North America, South America, and parts of East Asia show lighter to mid-range shading. The map includes a legend displaying the numerical range from one to thirty-five and is based on geographic outlines without additional labels.Geographical distribution of publications
Source: Authors’ own work