mal B, Sukarno J, to S. Analisis Sifat Mekanik Komposit Polyester Berpenguat Biride Partikel Arang Sekam Padi dan Kalsit. Prosiding Seminar Nasional ReTII [Internet]. 2017Mar.9 [cited 2024Dec.5];00. Available from: //journal.itny.ac.id/index.php/ReTII/article/view/495