Rajbhandari, G L. “Pulmonary Alveolar Microlithiasis: A Rare Lung Disease Diagnosed by Thoracoscopic Lung Biopsy”. Medical Journal of Shree Birendra Hospital, vol. 7, Mar. 2005, pp. 68-69, https://nepjol.info/index.php/MJSBH/article/view/21088.