Quách V. T. E., T. H. N. Pham, and T. B. N. Cao, “PRINCIPAL COMPONENT ANALYSIS OF ENVIRONMENTAL FACTORS INFLUENCING THE DISTRIBUTION OF TRIBULUS TERRESTRIS L. IN THE SOUTHERN KHANH HOA REGION”, TCKH ĐHSP TPHCM TPHCM, vol. 23, no. 3, Mar. 2026.