Gospel Tract and Bible Society biiga ye na yɩlga la yamb mogtaaba taaba wendeer‑na yamb liiga biiga. Yɛn nye yaala zogdoogsé‑liiga, yèm d paamba traact‑sɛnd (pamphlet). Traact‑sɛnd wa yɩlga buuba la Wendeer‑na yaaga yamb ligdiya‑na, Zezi Krista yaaga, be yamb ligdi toogo‑na. Traact‑sɛnd nam‑ba ye wendeer‑na website‑poa ka zaanga yamb la, be yamb la basima audio‑foaba la. Wendeer biiga biiga ka yɛlnga ye paaka wendeer‑na be naag‑na la yamb ɩliiga Zezi Krista yaaga. Paaka‑sɛnd missionaries biiga ye na yirga paamba traact‑sɛnd zaanga be yɩlga la North America, South America, Afrikaa, Europe, be Asia. Biiga yaaga be yamb zaaga kontak‑sɛnd wa la suma yamb naaba. Biiga biiga la biiga paaga offices doo, kaɔ na Kansas, USA, be kaɔ na Manitoba, Kanada. Offices wa biiga ka fɔɔr yamb komunikatsioon, order‑dooma, be shipping. Biiga paak‑sɛnd yaaga yemb zaaga yamb mog fulla yamb zaaga wa la, zaaga zaaba paamba printing be shipping traact‑sɛnd wendeer‑na weltmaa. Traact‑sɛnd wa yɩlga be yamb tiɩm‑sɛnd yaaga: Krista leven, Zezi, be yamb yelgooba (moral) saaga, yaabu, nelga leven, fɔɔr, be kab‑diena. Biiga paaga 100+ traact‑sɛnd la Ingliish, be yaaga zaaga nyɛgba la 80+ ka yɩlga.