Ramadona, Sara, Andesta, Deny, AND Ismiyah, Elly. " STRATEGI PEMASARAN PRODUK KERIPIK UD. BAGUS ABADI JAYA MENGGUNAKAN METODE SWOT (Strengths, Weaknesses, Opportunities, Threats) DAN QSPM (Quantitative Strategic Planning Matrix)" JUSTI (Jurnal Sistem dan Teknik Industri) [Online], Volume 1 Number 4 (6 July 2021)