“Treatment of Rheumatoid Arthritis with Methotrexate Alone or A Combination of Methotrexate and Hydroxychloroquine” (2015) Althea Medical Journal, 3(3), pp. 446–451. Available at: https://journal.fk.unpad.ac.id/index.php/amj/article/view/474 (Accessed: 1 August 2026).