1. Impact of Covid-19 pandemic on vegetable farmers in North Sumatra. Issue 2 (July 2021) Authors: Girsang, Moral Abadi; Marpaung, Imelda; Parhusip, D; Haloho, L; Tobing, S P; Nainggolan, P; Hidayat, S Journal: IOP conference series Issue: Volume 807:Issue 2(2021) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Understanding the relationship among the determinants of rice cropping index in Deli Serdang Regency. Issue 1 (November 2021) Authors: Napitupulu, Delima; Siagian, Deddy Romulo; Simatupang, Sortha; Girsang, Setia Sari; Marpaung, Imelda Journal: IOP conference series Issue: Volume 911:Issue 1(2021) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗