Nahason Sitohang, Maria Fransiska Laim Onggur. Pengaruh Persaingan terhadap Penjualan di Warung Koki Kaki Lima Cakung . PAJAMKEU [Internet]. 2025 Feb. 28 [cited 2026 Sep. 27];2(1):22-31. Available from: https://ejournal.areai.or.id/index.php/PAJAMKEU/article/view/789