Okla. Stat. tit. 60, § 60-521: Maintenance and examination of books and receipts of

expenditures.

The administrator, or the board of administration, or other form

of administration specified in the bylaws, shall keep a book with a

detailed account, in chronological order, of the receipts and

expenditures affecting the common elements specifying and itemizing

the maintenance and repair expenses of the common elements and any

other expenses incurred. Both said book and the vouchers

accrediting the entries made thereupon shall be available for

examination by all the unit owners at convenient hours on working

days that shall be set and announced for general knowledge.