Permatasari, Agustia, AND 		Hanum, Seprida.
" THE EFFECT OF PRODUCTION COSTS AND OPERATIONAL COSTS ON NET PROFIT ON METALS MANUFACTURING COMPANIES AND SOMETHING LISTED ON THE STOCK EXCHANGE INDONESIA (IDX) PERIOD 2013-2017" <em>Proceedings Of The International Seminar</em> [Online], Volume 1 Number 1 (21 July 2022)