INSTRUMEN DAN TEKNIK PENGUKURAN GARIS SEMPADAN: KAJIAN PERBANDINGAN ANTARA BNBC DAN NEDERLANDS-INDIE, 1881-1939: INSTRUMENTS AND TECHNIQUES FOR MEASURING BOUNDARY LINES: A COMPARATIVE STUDY BETWEEN THE BNBC AND THE NEDERLANDS-INDIE, 1881-1939. qjssh. 2026;7(2):227-236. doi:10.55197/qjssh.v7i2.1125