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		Ari, D., & 		Sri Budhi, M.
(2023).
 Productivity and income of rubber farmers in Belitang II District, East Ogan Komering Ulu Regency, South Sumatra Province.
<em>Jurnal Ekonomi Kuantitatif Terapan, </em>, 157-165.
doi:10.24843/JEKT.2023.v16.i01.p09