00573nam a22001217a 4500 RUA LONG RAKSMEY,ឡុង រស្មី CALCULATION OF MOUNTAIN VOLUME USING DRONE PPK TICHNOLOGY AND DGPS,ការគណនាមាឌភ្នំដោយប្រើប្រាស់បច្ចេកវិទ្យា DRONE PPK និងឧបករណ៍​ DGPS phnom penh rua 2019 x.49p. ill. 29cm. https://drive.google.com/file/d/1Bhf236FCxtNQE_QYpTQd9AgrO3redjqg/view?usp=share_link LMA 20502 20502 0 0 ddc 0 LMA_LON_2019_000000000000000_B467_OR 0 91366 LBB LBB B467 2022-09-14 LMA LON 2019 B467 Or. A069000 2022-09-14 2022-09-14 LMA 0 0 ddc 0 LMA_LON_2019_000000000000000_B467_OR 0 91367 LBB LBB B467 2022-09-14 LMA LON 2019 B467 Or. A068944 2022-09-14 2022-09-14 LMA 0 0 ddc 0 LMA_LON_2019_000000000000000_B467_OR 0 91368 LBB LBB B467 2022-09-14 LMA LON 2019 B467 Or. A069058 2022-09-14 2022-09-14 LMA 0 0 ddc 0 LMA_LON_2019_000000000000000_B467_OR 0 91369 LBB LBB B467 2022-09-14 1 LMA LON 2019 B467 Or. A068884 2023-10-18 2023-09-04 2022-09-14 LMA 0 0 ddc 0 LMA_LON_2019_000000000000000_B467_OR 0 91380 LBB LBB B467 2022-09-14 LMA LON 2019 B467 Or. A43288 2022-09-14 2022-09-14 LMA