Bayanjargal, Gendenpuntsag. “THE METHOD TO SOLVE DRIFT IN MAIN GEOMAGNETIC FIELD”.
Proceedings of the Mongolian Academy of Sciences
54, no. 4 (March 1, 2016): 64–71. Accessed April 9, 2025. https://mongoliajol.info/index.php/PMAS/article/view/626.