Miss. Code Ann. § 37-43-47

Bills for textbooks purchased by the state on requisitions as provided in this chapter, and bills for all other expenses incurred under the terms of this chapter, shall be paid by warrants on the State Treasury made by the Auditor on receipt of bills from the State Superintendent of Public Education, and approved by the State Board of Education. Bills for textbooks purchased by public school districts, shall be submitted to the respective school district submitting the requisition. Each public school district will make payment to the appropriate entity which is responsible for providing the requested textbooks.