The Society of Phase Change Recording
KO, DAE HONG, 도기훈, HYUNCHUL SOHN, mann-ho cho
Materials Research Society
Cho, Sang Wan, cho mann-ho
Materials Research Society in USA
도기훈, HYUNCHUL SOHN, mann-ho cho, DAE HONG KO
Material Research Society
KO, DAE HONG, HYUNCHUL SOHN, mann-ho cho, Kihoon Do
KO, DAE HONG, mann-ho cho, 조영대, 서동찬, 정권범
한국 물리학회
박진환, 조상완, 정진걸, 박상한, mann-ho cho, Chung Nam WHANG
장문형, 김영국, 박승종, 임동혁, mann-ho cho, Chung Nam WHANG,, 이후정, 김형섭
사단법인 대한금속-재료학회
chomann-ho, kimchungyi
Electrochemical society
KO, DAE HONG, 유정호, 장현진, mann-ho cho, 이태완
E-Materials Research Society
Jang, Moon Hyung, Park, Seung Jong, Lim, Donghyeok, cho mann-ho