@unpublished{repository10871,
           title = {Seminar Kecerdasan Spasial, Prodi Sains Geografi UPI-Juli 2021, R Tricahyono NH},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/10871/},
          author = {Tricahyono, Nur Harsono}
}