lpjknet merupakan website penyedia jasa pembuatan sertifikat konstruksi seperti : SKK,SBU,ISO,SMK3 dan masih banyak lagi sertifikat konstruksi lainnya
website : https://lpjknet.com
facebook : https://www.facebook.com/lpjknet
twitter : https://twitter.com/LpjkNet_com
linkedin : https://www.linkedin.com/in/mustasar-uddin-2662b9299
youtube : https://www.youtube.com/@LPJKNET-gd7fy
instagram : https://www.instagram.com/lpjknet
telegram : https://web.telegram.org/k/#-2048897619
Sumber Referensi :
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https://active.popsugar.com/@lpjknet/profile
https://scholar.google.com/citations?hl=id&user=YgjFyq8AAAAJ
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https://lpjknet.amebaownd.com/posts/53128440
https://658ad6f79a1a7.site123.me/
https://community.atlassian.com/t5/user/viewprofilepage/user-id/5484007