The region where this food originated uses a Cyrillic alphabet. Thus food and other items often are presented with differing spellings based on phonetics.
Lamejun is common throughout the Near East. My background is Armenian so to me it's an Armenian dish. If you look at the Rick Stein version and check out a YouTube video, he talks about its being a Turkish street food.
The truth is, foods don't recognize political borders and travel freely around a region. Lamejun is part of Armenian, Turkish and other cuisines. The same applies to other regional foods such as paklava/baklava which is often presented as a Greek dish. It's not a Greek or Armenian or Turkish dish. It's a regional dish. Sometimes it's made with a honey based sauce and pistachios and sometimes with a simple syrup and walnuts. Dolmades is a dish in Greek cuisine - stuffed grape leaves often topped with a lemon sauce. Dolma is an Armenian dish of stuffed grape leaves topped with a yogurt sauce. Similar but different.