by Napitupulu, A M M, Suhendra, L, Gunam, I B W
Published in IOP conference series. Earth and environmental science (01.11.2021)

by Mizera, Čestmír, Aleš, Zdeněk, Herák, David, Hrabě, Petr, Kabutey, Abraham, Napitupulu, Richard A. M., Ungureanu, Nicoleta
Published in Processes (01.10.2023)

by Dewi, O C, Chairunnisa, I, Hidayat, T, Anggraini, M, Napitupulu, A
Published in IOP conference series. Earth and environmental science (01.03.2018)

by Manurung, Charles SP, Napitupulu, Richard AM
Published in IOP conference series. Materials Science and Engineering (01.09.2017)

by Setyawan, Eko Y., Napitupulu, Richard A.M., Siagian, Parulian, Ambarita, Himsar
Published in IOP conference series. Materials Science and Engineering (01.09.2017)

by Napitupulu, Richard A.M.
Published in IOP conference series. Materials Science and Engineering (01.09.2017)

by Napitupulu, Togar A.
Published in Binus business review (30.05.2010)

by Ambarita, H, Napitupulu, R. A. M., Winarto, P
Published in IOP conference series. Materials Science and Engineering (01.09.2018)

by Setyawan, EkoYohanes, Kurniawan, Arif, Rahmadianto, Febi, Napitupulu, Richard A. M, Siagian, Parulian
Published in IOP conference series. Materials Science and Engineering (01.07.2020)

by Napitupulu, Richard A. M., Ginting, Sibuk, Naibaho, Waldemar, Sihombing, Suryadi, Tarigan, Nikodemus, Kabutey, Abraham
Published in IOP conference series. Materials Science and Engineering (01.01.2020)

by Zagloel, T Y M, Napitupulu, R A S
Published in IOP conference series. Materials Science and Engineering (01.05.2019)

by Napitupulu, Togar A., Medina, Desmi Avicena
Published in Binus business review (31.05.2012)

by Qadry, Al, Hutagalung, Tommy, Harry, Kevinta J.M, Napitupulu, Richard A. M., Ambarita, Himsar
Published in IOP conference series. Materials Science and Engineering (01.01.2020)

by Novák, V., Křížová, K., Napitupulu, R. A. M.
Published in IOP conference series. Materials Science and Engineering (01.10.2018)

by Siagian, P., Napitupulu, F.H., Setyawan, E.Y., Siagian, L., Napitupulu, R. A. M., Ambarita, H.
Published in IOP conference series. Materials Science and Engineering (01.10.2018)

by Setyawan, Eko Yohanes, Asroni, Mochtar, Djiwo, Soeparno, Anam, Asroful, Napitupulu, Richard A. M., Siagian, Parulian
Published in IOP conference series. Materials Science and Engineering (01.10.2018)

by Ambarita, Himsar, Peranginangin, Siwan E., Napitupulu, Richard A. M., Tampubolon, Miduk, Sihombing, Hendrik V.
Published in IOP conference series. Materials Science and Engineering (01.10.2018)

by Napitupulu, Richard A M, Simanjuntak, Sutan L M H, Manurung, Charles, Hutabarat, Chilinton, Sitompul, S, Aoh, J N
Published in IOP conference series. Materials Science and Engineering (01.04.2019)

by Siregar, Wandro, Siagian, Parulian, Rong-Shine, Lin, Napitupulu, Richard AM, Tampubolon, Miduk, Simanjuntak, Sutan LMH
Published in IOP conference series. Materials Science and Engineering (01.07.2020)

by Manurung, Charles SP, Ambarita, Himsar, Manurung, Yupiter H.P., Napitupulu, Farel, Napitupulu, Richard AM
Published in IOP conference series. Materials Science and Engineering (01.01.2020)