भारत-भूटान संबंध - चीन एक सुरक्षा चुनौतियाँ. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 11A, p. 478–486, 2022. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/9516. Acesso em: 21 sep. 2026.