Putri, Yayang, 		Nurafni, Nurafni, AND 		Riwajanti, Nur.
" PROFIT OPTIMIZATION AND COST EFFICIENCY OF PRODUCT MIX WITH LINIER PROGRAMMING    SPREADSHEET MODEL" <em>JURNAL AKUNTANSI UNIVERSITAS JEMBER</em> [Online], Volume 21 Number 2 (1 December 2023)