https://doi.org/10.58303/jeko.v14i2c.2595
-
https://doi.org/10.58303/jeko.v14i2c.2597
-
https://doi.org/10.58303/jeko.v14i2c.2598
-
https://doi.org/10.58303/jeko.v14i2c.2599
-