The commissioner has general supervision and control over all domestic and foreign savings and loan associations doing business in this state and has full power to grant, refuse, or revoke a permit or license to any association to do business in this state when such association is not conducting its business in conformity with the laws of the state or is conducting its business in such an unsafe manner as to render its further operations hazardous to the public or any of its shareholders. All articles of incorporation and amendments thereto, all bylaws and amendments thereto, and all certificates of stock and shares of associations subject to articles 40 to 46 of this title shall be submitted to said commissioner for his approval or disapproval, and said commissioner has the authority to approve, modify, or reject any such articles of incorporation or amendments thereto, bylaws or amendments thereto, and certificates of stock or shares. The commissioner has full power and authority to prescribe all necessary and proper rules and regulations for the conduct and operation of savings and loan associations in this state and shall prescribe the manner in which the books and records of associations doing business in this state shall be kept.